35.

Percentage
(A) 56% (B) 33%
Exercise -1 (C) 48% (D) 40%
6. Price of rice is increased by 30%, and
1. A is 20% less then B, then by what consumption is decreased by 20%,
percent B is more than A? then find out the effect on its
A, B 20% B, A expenditute?
30%
(A) 25% (B) 30% 20%
(C) 20% (D) 50%
2. If income of A is 30% more than that
(A) 4% increase (B) 5% increase
of B. Then by what percent income of
(C) 10% decrease (D) 20% decrease
B less than A?
7. The price of the ticket in a picture
A B 30% hall increased by 30%. If no. of visitors
B A is increased by 10% then find out the
effect on income?
1 30%
(A) 30% (B) 13 % 10%
3
1 2
(C) 23 % (D) 26 % (A) 43% increase (B) 48% increase
13 3
3. 50% of a% of b is equal to 75% of b% (C) 50% decrease (D) 43% decrease
of c. Which of the following is c ? 8. If the side of a square is increased by
25%. Then find out the effect on its
b a% 50% c b% 75%
area?
c
25%
(A) 1.5a (B) 0.667a
(C) 0.5a (D) 1.25a
4. Two numbers are 60% and 20% more (A) 55.33% increase
than a third number respectively. (B) 56.25% increase
Then find out second number is what (C) 55% increase
percent of the first number? (D) 50% increase
9. Price of rice is increased by 20%, by
60% 20%
what percent its consumption be
decreased so that the overall
expenditure remains same?
(A) 50% (B) 70% 20%
(C) 65% (D) 75%
5. The price of vegetable increase by 30%
and its consumption also increased
by 20%, then find out the increase in 2
(A) 16 % (B) 20%
its expenditure? 3
30% 1 2
20% (C) 8 % (D) 15 %
4 3

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 36.

10. If the length of cuboid is increased by and that of females by 10% then the
50% and breadth is decreased by 20% population would incrase to 16300. Find
and its height is decreased by 20% the number of females in the town.
then find out the effect on its volume?
50% 8% 10%
20%
20%
(A) 3000 (B) 5000
(A) 4% decrease (C) 4000 (D) 6000
(B) 50% decrease 15. A man spends 60% of his income. If
(C) 8% increase his income increases by 15% and
(D) 10% increase expenditure also increases by 5%.
11. Population of a town is 8000. First Then find out the percentage
year it is increased by 40% and second increment in his savings?
year it is increased by 20%. Then 60%
find out the population after 2 years? 15%
8000 40%
5%
20%
(A) 35% (B) 30%
(A) 10000 (B) 13440 (C) 50% (D) 40%
(C) 9200 (D) 10560 16. A man spends 70% of his income. If
12. Population of a city is 10,000. First his income is increased by 24% and
year it increased by 10% then second his expenditures also increased by
year it decreased by 20% and third 15%. Then find out the effect on his
year it increased by 30%. Then find savings?
out the population after 3 years? 70%
10000
24%
10% 20%
15%
30%
(A) 45% (B) 40%
(A) 11440 (B) 12000 (C) 50% (D) 48%
(C) 11500 (D) 12800 17. A man spends 20% on food, 15% on
13. Population of town is increased by rent, 20% on medicines, 5% on
10% in first and in second year it education, 10% on import and 10%
increased by 20%. Population is 26400 on others. If he saves `6000. There
after 2 years. Then find out the find out his income?
population before 2 years? 20% 15%
10%
20% 5% 10%
20%
10%
26400
6000

(A) 15000 (B) 17500

(A) 20000 (B) 35000
(C) 23000 (D) 20000
(C) 10500 (D) 30000
14. The population of a town is 15000. If
the number of males increases by 8%

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 37.

18. Ram spends 20% on domestic 8% 2/3

expenditures, 15% of remaining
income on books and 30% of remaining (A) 2 : 3 (B) 3 : 2
income on Clothes. After that he has (C) 3 : 4 (D) 4 : 3
9520 Rs. Then find out his monthly 22. In an exam, 35% marks are
income. compulsary to pass. A student scored
20% 40 marks and failed by 30 marks.
15% Find out the grand total of the exam.
30% 35%
9520 40
30
(A) Rs. 15000 (B) Rs.10000
(C) Rs.20000 (D) Rs.18000 (A) 280 (B) 180 (C) 200 (D) 150
19. A man gave 20% of his income to 23. Commission of a broker is increased
elder son. Then 30% of remaining he from 4% to 5%, but his income is
gave to younger son and 10% of unchanged. Then find out the effect
remaining amount he gave to a trust on his business?
and now he has L20160. Then find 4% 5%
out his income.
20
30
(A) 15% decrease (B) 30% decrease
10 (C) 25% decrease (D) 20% decrease
24. A student scored 30% makes and
20160 failed by 5 marks, another student
(A) Rs.50000 (B) Rs.40000 scored 40% marks and scored 10 more
(C) Rs.30000 (D) Rs.20000 marks from minimum pass marks
20. If the numerator of a fraction is condition. Then find out the minimum
increased by 20% and denominator is marks to pass the exam?
decreased by 20% and we get 4/5 as 30% 5
result. Then find out the initial 40%
fraciton. 10
20%
20%
4/5 (A) 50 (B) 70 (C) 100 (D) 150
25. In an exam 900 girls and 1100 boys
(A) 7/11 (B) 4/5 appeared. 40% of the girls and 50% of
(C) 2/3 (D) 8/15 boys passed in the exam. Then find
21. Sum of the 5% of first number and out how many percent students failed
4% of second number is 2/3 of the in the exam?
sum of 6% of first number and 8% of 900 1100
second number. Then find out the 40% 50%
ratio of first number to the second
number?
(A) 45% (B) 45.5%
5% 4%
(C) 54.5% (D) 59.2%
6%

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 38.

26. In an exam A get 25% marks more 2%

than B, while B gets 10% less marks 9261
than C and C gets 25% more than D.
75%
If D scored 320 marks out of 500
marks. Then marks of A will be?
A B 25% (A) 16400 (B) 12200
(C) 16800 (D) 28800
B C 10%
30. A man purchased a plot for `72900.
C D 25% He spent `133100 to build a house on
D 500 320 it. If the price of plot is increased by
A 10% and the price of house is
(A) 405 (B) 450 decreased by 10%. Then find out after
(C) 360 (D) 400 how many years the price of both plot
27. In a test of 250 questions, Jassi an- and house will be equal?
swered 40% of the first 125 questions 72900 133100
correctly. What percent of the other
125 questions does she need to answer 10%
correctly for her grade on the entire
10%
exam to be 60%?

(A) 3 years (B) 2 years

(C) 1.5 years (D) 2.5 years
31. In an office 50% people drink tea,
70% drink coffee. then find out how
(A) 75 (B) 80 many percent people who drink like
(C) 60 (D) 50 both if everyone drinks atleast one of
28. In an election a candidates got 65% the beverages.
votes and won by 2748 votes. Find out 50% 70%
the total voters, if no vote was
declared invalid.

65%
(A) 25% (B) 15%
2748 (C) 20% (D) 30%
32. In an exam 52% failed in English and
42% in Maths. If 17% failed in both
(A) 8580 (B) 8720 subjects. Then find out the percentage
(C) 9000 (D) 9160 who passed in both subjects.
29. In an election between two candidates 52%
75% of the candidates cast their votes 42% 17%
out of which 2% are invalid. A candi-
dates got 9261 votes which was 75% of
valid votes. Find the total number of
(A) 23 (B) 21
votes.
(C) 25 (D) 22
75%

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 39.

33. Out of some members 42% like 36. There is 40% salt in a mixture of
Cricket, 47% like Football, 15% like water and salt of 5 liters. If 3 liters
both and 7800 neither like Cricket water added to the mixture, then find
nor Football. Then find out the total out the percentage of salt in the
members? mixture?
42% 5 40%
47% 3
15% 7800
(A) 20% (B) 25%
(C) 22% (D) 30%
37. There is 90% copper in a mixture of
Copper and Zinc of 80 kg. Some
(A) 30000 (B) 35000
quantity of Zinc is added to the
(C) 25000 (D) 20000
mixture and now percentage of Copper
34. In a family ratio between rice, fish
is 60%. Then find out how much Zinc
and edible oil expenditure is 12:17:3.
added in the mixture?
If 20%, 30% & 50% increament is
80 90%
done on these articles. What will be
total increament in the expenditure
of family ? 60%

12 17 3 (A) 35 Kg. (B) 38 Kg.

20% 30% 50% (C) 50 Kg. (D) 40 Kg.
38. Weight of Watermelon is 20 Kg. In
which 90% is water. After 14 days
due to vapourisation of water, there
1 1 is 60% water left. Then find out the
(A) 14 % (B) 7 % quantity of vapourised water?
8 8
20 90%
1 1 14
(C) 56 % (D) 28 %
8 8 60%
35. A factory manufactures two types of
toys in 6 : 9 ratio 20% of total
manufacturing is wastage and 40% of
remaining for export. Then domestic (A) 10 Kg. (B) 15 Kg.
consumption is how much percentage (C) 20 Kg. (D) 18 Kg.
39. In fresh fruit there is 68% water, and
of total manufacturing ?
in dry fruit there is 20% water. How
69
muchthere is get dry fruit do we
20% obtain from 100 kg fresh fruit?
40% 68
(Export) 20 100

(A) 40% (B) 36% (A) 32 kg. (B) 40 kg.

(C) 50% (D) 48% (C) 52 kg. (D) 80 kg.

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 40.

40. Price of rice is decreased by 2%. A

man consumed 49 kg previously. Then 100000
find out the new consumption of rice
20%
with same expenditure?
3160
2%
49

(A) 115800 (B) 103160

(A) 35 kg. (B) 48 kg.
(C) 13160 (D) 9650
(C) 35 kg. (D) 50 kg.
45. A salesman get 5.5% commision on
41. On increasing the price of a product
total sales and additional 1/2% on
by 20%, a person can purchase 5kg
sales above `10000. If his income was
less in 600Rs. Find the original per
`1990. Find the total sell.
kg price of the product.
20% 1
5 %
600 5 2
1
10 000 %
2
2
(A) 24 (B) 16 1990
3
(C) 20 (D) 25
(A) 30000 (B) 32000
42. Price of a pen becomes L20 after price
(C) 34000 (D) 35000
increase of 20%. The price of one dozen
46. A labour's daily wage is increased by
of such pens before the increase of
20%. But his weekly working time is
price was:
decreased by 10%. Thus he get total
3780 Rs. Find his initial total wages?
20%

(A) L200 (B) L210 10%

(C) L175 (D) L190
43. One variety of Guavava is available at 3780
3 for L5 another variety is available
at 2 at L5. Then find out rate of second (A) 3000 (B) 3600
type guavava is how much percent (C) 3500 (D) 3200
more than that of first type variety? Practice Exercise
5 3 1. If the length of a rectangle is
5 2 decreased by 25% then by what
percent its breadth be increased so
that there is no effect on its area?
(A) 30% (B) 40% 25%
(C) 50% (D) 60%
44. For a taxpayer there is no tax for first
100000 (Annualy) income. but on
1
remaining income he has to pay 20% (A) 33% (B) 33 %
tax. If he paid 3160 Rs. as tax. Then 3
find out his monthly income? 1
(C) 25 % (D) 20%
2
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 41.

2. A number is divided in two parts in (A) 32% increased (B) 38% increased
such a way that 80% of the first part (C) 40% increased (D) 5% decreased
is 3 more than the 60% the second 6. If the length of the Cuboid is
part and 80% of the second part is 6 decreased by 50% breadth is
more than 90% of the first part. Then increased by 20% and its height is
find out the number? decreased by 20%, then out the its
volume gets -
80% 60% 50%
3 80% 20% 20%
90% 6

(A) 135 (B) 125 (A) 52% decreased

(C) 130 (D) 145 (B) 50% decreased
3. A man pays tax 4 paisa per rupee (C) 40% decreased
accordingly. He finds that when the (D) 30% decreased
rate of interest decreased from 4% to 7. If the side of a cube is increased by
3.75, his net annual income is 10%. Then its volume gets –
decreased by 48 Rs. Then find out 10%
the capital?
4 (A) 33% increased (B) 30% increased
4% (C) 20% increased (D) 34% increased
3 75% 8. If the radiaus of a cyllinder is
increased by 20% and its height is
48
decreased by 50%, then its volume
gets -
(A) 24000 (B) 25000 20%
(C) 20000 (D) 18000
50%
4. The price of the ticket of picture is
increased by 40% and the so his
visitors decreased by 20%. Then find (A) 32% decreased
out the effect on the income of cinema (B) 30% decreased
hall ? (C) 28% decreased
40% (D) 20% decreased
9. If the radiaus of a Cone is increased
20%
by 40% and its height is decreased by
50%, then its volume gets -
(A) 15% increased (B) 12% increased 40%
(C) 18% increased (D) 10% increased
50%
5. If the length of a recatangle is
increased by 20% and its breadth is
also increasd by 10%. Then find out (A) 2% decreased
the overall percentage effect on its (B) 3% decreased
area? (C) 4% decreased
20% (D) 10% decreased
10%

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 42.

10. If the radiaus of a sphere is increased 40

by 20%, then its volume gets -
20% (A) 50 Kg. (B) 48 Kg.
(C) 60 Kg. (D) 45 Kg.
(A) 75% increased 15. A student secured 35% marks and
(B) 72.8% increased failed by 68 marks. In same exam
(C) 50% increased another student secured 40% marks
(D) 20% increased and gets 22 more marks then
11. Price of rice is increased by 20% and minimum passing marks. Then find
its expenditure in increased by 50%. out the total marks?
The find out the overall effect on 35%
percentage increament on its 68
consumption?
40% 22
20%
50%
(A) 1500 (B) 1800
(A) 20% (B) 25% (C) 1700 (D) 2000
(C) 30% (D) 80% 16. There is 40% salt in a mixture of 20
12. Price of tea is increased by 50% and litres. When 5 litres water added to
its expenditure is increased by 20% the mixture. Then find out the
Then find out the effect on its percentage salt in the mixture?
consumption?
20 40%
50%
5
20%
(A) 32% (B) 30%
(A) 20% decreased (C) 25% (D) 50%
(B) 30% decreased 17. Two numbers are 26% and 5% more
(C) 25% decreased than the third number. Then find out
(D) 20% increased the first number is how much percent
13. The price of rice if increased by 20%. of second number?
Its expenditure is decreased by 10%.
26% 5%
Then findout the effect on its
consumption?
20%
10% (A) 120% (B) 100%
(C) 80% (D) 130%
18. There were two condidates in an
(A) 25% decreased election. Winner gets 52% of the total
(B) 25% increased votes and wins by 7200 votes. Find
(C) 30% decreased out the total voters?
(D) 20% decreased
14. Price of rice is decreased by 20%. A
man consumed 40Kg previousluy. Find 52% 7200
out the consumption in the same
amount?
20% (A) 180000 (B) 150000
(C) 175000 (D) 185000
Patwar Jaipur Batch Contact : 7877761170, 9462047175
 43.

19. There were two candidates in an 30

election. 20% of the votes were
invalid. Winner gets 60% of the total (A) 10% (B) 25%
valid votes and wins by 28800 votes. (C) 50% (D) 15%
Then find out the total votes? 24. A number is being multiplied by 40,
but by mistake it multiplied by 50.
20% Then find out the percentage error?
60% 28800 40
50

(A) 180000 (B) 150000 (A) 30% (B) 25%

(C) 200000 (D) 175000 (C) 50% (D) 20%
20. Due to the decreament in the price 25. A man increased his wage by 40%
of tea by 20%. A man purchases 5 kg per hour and reduced the time of
more tea in 100 Rs. Then find out the working hours by 20%. Then find out
new price and old price of tea? the effect on his income?
20% 40%
100 5 20%

(A) 4 Rs., 5 Rs. (B) 5 Rs., 4 Rs. (A) 15% increased

(C) 5 Rs., 7Rs. (D) 3 Rs., 4 Rs. (B) 12% increased
21. If the numerator of a fraction is (C) 20% decreased
increased by 20% and denominator is (D) 10% decreased
increased by 50%, result out fraction 26. A number become 30 when it
we get is 2/5. Then find out the decreased by 10% Then find out the
initial fraction? percentage increment to make it 40.
20% 10% 30
50% 2/5 40
(A) 10% (B) 15%
(A) 2/5 (B) 1/2 (C) 20% (D) 25%
(C) 4/5 (D) 3/5 27. Price of product is decreased by 25%.
22. If the numerator of a fraction Then find out the percentage
increased by 60% and its increament to apply the old price.
denominator is decreased by 40%. 25%
Then we get a resultant fraction 2/
5. Then find out the initial fraction?
60%
40% 2/
1
5 (A) 33% (B) 33 %
(A) 2/5 (B) 5/2 3
(C) 3/20 (D) 3/8 (C) 25% (D) 30%
23. A number is being multiplied by 20, 28. 25 of ? = 182
but by mistake it is multiplied by 30. 25% = 182
Then find out the percentage error? (A) 354 (B) 350
20 (C) 360 (D) 728

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 44.

29. 66% of 350 + ? = 5/8 of 1256 (A) 60% (B) 40%

350 66% + ? = 1256 5/8 1
(A) 521 (B) 496 (C) 37 % (D) None of these
2
(C) 554 (D) 568
36. Ratio of two numbers 5:4 respectively.
30. 25% of 75% of 3/5 of 4240 = ?
If the 40% of the first number is 12.
4240 3/5 75% 25% = ? Then find out the 50% the second
(A) 595 (B) 424 number?
(C) 348 (D) 477 5: 4
30% of 80
31.  24 40% 12
?
50%
% (A) 18 (B) 20 (C) 12(D) 24

? 37. 7% Sale tax is levied on a product
(A) 3/10 (B) 3/17 costing of 400Rs. 9% Sale tax is levied
(C) 1 (D) 2 on another product cost of 6400 Rs. if
32. If the numerator is increased by 25% a person purchased both products then
and doubled the denominator, then how much average percentage he have
we get a resultant fraction 5/9. Then to pay on sale tax.
find out the initial fraction? 400 7%
25% 6400
5/9 9%
(A) 2/3 (B) 4/9
(C) 8/9
(D) We can not find
33. Two numbers are 30% and 40% more 13 15
(A) 8 (B) 8
than the third number respectively. 17 17
Then find out what percent of second
1
number is the first number? (C) 8 (D) 8
30% 2
38. If 24 added to 40% a number. Then
40%
resultant is equal to the number
itself. Then find out the number?
6 1 2 24 40%
(A) 85% (B) 92 7 % (C) 79 % (D) 63 3 %
2
34. Find out the value in decimal fraction
1
of %? (A) 16 (B) 24 (C) 40(D) 64
2 39. In an exam 72% passed in math 78%
passed in Bangla. If there is no person
% who failed in both subjects. Then find
(A) .0005 (B) .005 out the percent students who passed
(C) .05 (D) .5 in both subjects?
35. If height of Anil is 60% more than 72%
Deepak. Then find out how much 78%
percent less than height of Deepak
than Anil?
60%
(A) 55% (B) 60%
(C) 45% (D) 50%

Patwar Jaipur Batch Contact : 7877761170, 9462047175

 45.

40. When the price of toy is increased by 1 1

20% then its sales is decreased by (C) 7 % (D) 10 %
15%. Then find out the effect on its 11 11
income? 46. If 60% A = 3/4 of B then A : B = ?
20% A 60% = B 3/4 A : B
=?
15%
(A) 9 : 20 (B) 20 : 9
(C) 4 : 5 (D) 5 : 4
(A) 2% increased (B) 2% decreased 47. Price of a product is increased by
(C) 4% increased (D) 4% decreased 10% and then again increased by 20%.
41. Salary of A is 40% of B and salary of If thefinal price after increment is
B is 25% of C. Then what percent is 33. Then find out the initial price?
the salary of A, as compared to salary 10%
of C?
20%
A B 40% B
33
C 25% A C
(A) 30 Rs. (B) 27.50 Rs.
(A) 5% (B) 10%
(C) 26.50 Rs. (D) 25 Rs.
(C) 15% (D) 20%
48. If a number is increased by 20% and
42. Two numbers are 30% and 37% less
resultant again increased by 20%.
then the third number. Then find out
Then find out the total increment?
by how much percent second number
less to the first number? 20%
30% 20%
37%
(A) 40% (B) 48%
(C) 44% (D) 41%
(A) 10 (B) 7 (C) 4 (D) 3
49. If the income of Joseph is decreased
43. Find out the equal percentage of
by 10%. Then by what percent it
0.003?
should be increased to make it old
0.003 income?
(A) 3% (B) 0.3% 10%
(C) 0.03% (D) 0.003%
44. Weight of Reena is 25% the weight of
Meena and 40% of the weight of Tara.
Then what percentage of Tara's weight 1 1
is equal to weight of Meena? (A) 12 % (B) 11 %
2 9
25% (C) 10% (D) 11%
40% 50. If the water-tax is increased by 20%
so its consumption is decreased by
(A) 160% (B) 140% 20%. Then find out the percent effect
(C) 120% (D) 100% on the total tax?
45. If x, is 10% more than y. Then by 20%
what percent y is less than x. ? 20%
x, y 10% y, x
(A) 5% decreased (B) 4% decreased
1 1 (C) 4% increased (D) No change
(A) 9 % (B) 8 %
11 11

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 46.

51. The price of Jute is decreased by 20%. marks?

It price became 800 Rs. per quiental. 40%
Then find out its old price? 178 22
20%
800
(A) 200 (B) 500
(A) Rs. 640 (B) Rs.900 (C) 800 (D) 1000
(C) Rs.960 (D) Rs.1000 57. There are 3 sections in a class. There
52. Price of pertrol is decreased by 10% are 40, 50 and 60 students. In which
by what percent its consumption 10% , 20% and 10% passed
should be increased so the overall respectively. Find out the percentage
expenditure remain same? pass in total class?
10% 40, 50
60 10%, 20%
10%
1 1 1
(A) 11 % (B) 12 % (C) 10 % (D) 14%
9 3 2 1 2
53. There is 60% led in a 50kg mixture (A) 13 % (B) 16 %
3 3
of led and Tin. How much led added (C) 15% (D) 20%
to the mixture so the percentage of 58. Given 10% of A income = 15% of B's
led will be 75%. income = 20% of C income. If the
50 60% total income of A, B & C is 78000 Rs.
Then find out the income of B?
75% A 10% = B
(A) 20 Kg. (B) 25 Kg. 15% = C 20% A,
(C) 30 Kg. (D) 40 Kg. B C 78000
54. How many litres water added in a
B
mixture of liquid of 9 litres in which
(A) Rs.36000 (B) Rs.30000
water is 50% so that the percentage
(C) Rs.24000 (D) Rs.18000
of acid goes to 30%.
59. Expenditure of a family on rice, fish
50% 9 and edible oil are 12 : 17 : 3
30% respectively. These price are
(A) 4.5 Litre (B) 3 Litre increased by 20% , 30% , 50%
(C) 6 Litre (D) 7.5 Litre respectively. Find out the percentage
55. There is 40% is sugar in a mixture of increment in the expenditure of the
300 gm. How much sugar added to family?
mixture so the percentage of sugar
goes to 50%?
12 : 17 : 3
300 40%
20%, 30%
50%
50%
(A) 10 gm. (B) 40 gm.
(C) 60 gm. (D) 80 gm.
56. Student will pass in exam on 40%. A 1 1 1 1
student secured 178 marks and failed (A) 14 % (B) 7 % (C) 50 % (D) 28 %
8 8 8 8
by 22 marks. Then find out the total

Patwar Jaipur Batch Contact : 7877761170, 9462047175

 47.

60. Cost price of a M.R.I. Machine is 1 (C) 119500 (D) 125500

Crore. Seller offers a discount of 5%. 65. If the side of a square is increased by
Then find out the value of discount? 10% . Then find out the overall
1 increament in the area?
5% 10%

(A) 50,000 (B) 5,00,000 (A) 10% (B) 21%

(C) 50,00,000 (D) 75,00,000 (C) 44% (D) 100%
61. Salary of Tulsiram is 20% more than 66. If the length of a rectangle is
Kashyap. If the savings of Tulsiram is increased by 10% and breath is
720 Rs. that is 4% of his salary. Find decreased by 10%. Then find out the
out the salary of Kashyap? effect on its area?
20% 10%
720 10%
4% (A) 1% increased (B) 1% decreased
(A) Rs.12000 (B) Rs.15000 (C) 10% decreased
(C) Rs.14400 (D) Rs.22000 (D) No increase no decrease
62. Wages of employee is decreased by 67. If the length and breadth of a square
40% then increased by 50%. Then is increased by 40% and 30%. What
find out the percent profit or percent is the resultout area of a rectangle?
loss? 40%
40% 30%
50%

(A) 10% Profit (B) 10% Loss (A) 42% (B) 62%
(C) No loss no profit (C) 82% (D) None of these
(D) None of these 68. Three solid Balls, whose radiaus are
63. In an exam A & B secured 60% and 1 cm, 2 cm and 3 cm are respectively
30% marks respectively there total by meltin,g we form a new ball. In
marks are 783. Then find out the this process 25% material goes waste.
total marks in the exam? Then find out the radiaus of new ball?
A B 1 2 3
60% 30%
783 25%

(A) 850 (B) 870

(C) 900 (D) 960 (A) 6cm (B) 5 cm (C) 3cm (D) 2 cm
64. Population of a town 85,000. First year 69. There were two candidates in an
it increased by 20%. Second year it election. A candidates gets 71% votes
increased by 25%. Then find out the and wins by 756 votes. Then find out
population after 2 years? the total voters?
8500
20% 25% 71% 756
2
(A) 109500 (B) 127500 (A) 1890 (B) 1800
(C) 1860 (D) 1850

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 48.

70. First a number is decreased by 10%. (C) 80% (D) 93.75%

Then it increased by 10% . The 74. In an office 72% employees have Tea
number is 50 less than the original and 44% have coffee. If everyone have
number. Then find out the initial either tea or Coffee and 40 employees
number? have both Tea and Coffee. Then find
10% the total number of employees.
10% 72% 44%
50
40
(A) 5000 (B) 5050
(C) 5500 (D) 5900
71. In a group 70% students speak (A) 250 (B) 240
English, 65% speak Hindi, 27% of the (C) 200 (D) 320
students neither speak Hindi nor 75. Population of a town is 18000. During
English. Then what is percentage of first year it increased by 10% and
students who speak both languages ? second year it increased by 20%. Then
70% find the total population after 2 years.
65% 18000
27% 10% 20%
2
(A) 19800 (B) 21600
(A) 38% (B) 32% (C) 23760 (D) None of these
(C) 62% (D) 23% 76. There is 10% water in 100 litres
72. In an exam 30% students failed in mixture of milk and water. How many
Maths and 35% failed in English while litres water added to the mixture so
25% failed in both the subjects. If the the percentage of milk goes to 50%?
no. of students passed in both the 100 10%
subjects is 360. Find out the no. of
total students? 50%
30% (A) 70 litres (B) 72 litres
35% 25% (C) 78 litres (D) 80 litres
77. 40 Litres mixture of milk and water
360 in which 10% is water. How many
lites of water added to the mixture so
the percentage of water will be 20%?
(A) 400 (B) 500
40 10
(C) 600 (D) 800
73. Two numbers are respectively 25% 20
and 20% less than a third number.
Then first number is what percent of
the second number? (A) 6 Litres
25% (B) 6.5 Litres
20% (C) 5.5 Litres
(D) 5 Litres
(A) 5% (B) 75%

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 49.

78. Income of C is 20% more than B. (C) 54080 (D) 54900

Income of B is 25% more than A. 83. Ratio of boys to girls 3:2. If 20% boys
Then find out the income of C is more and 25% girls are adult. Then findout
that of A? the percentage of students who are
C B 20 not adult?
B A 25 3
C A :2 20% 25%

(A) 150% (B) 50%

(C) 25% (D) 35% (A) 58% (B) 67.5%
2 (C) 78% (D) 82.5%
79. A man spends 66 % of his income, 84. Radha spends 40% of his salary on
3 food, 20% on rent, 10% on
and saves 1200 Rs. per month. Find entertainement and 10% of
out his expenditure per month? transportation. In the end of month
2 he saves 1500 Rs. Then find out his
66 % monthly income?
3
1200 40% 20%
( ) 10% 10%
(A) 1200 (B) 2400
(C) 3000 (D) 3200 1500 ( )
80. If number x is 10% less than another
number 'Y'. Y is 10% more than 125. (A) 8000 (B) 7500
Then x is equal to =? (C) 6000 (D) 10000
x y 10% 85. Monthly income of a person is 13500
y 125 10% x Rs. and expenditure is 9000 Rs. Next
(A) 150 (B) 143 year his income is increaseed by 14%
(C) 140.55 (D) 123.75 and expenditure is increased by 7%.
81. Neelam spends 20% of his income on Then find out the increament in his
rent and 70% of remaining she spends savings?
on domestic. If he saves 3600 Rs. 13500
Then find out his total income? 9000
20% 14 7
70%
3600 (A) 7 (B) 21 (C) 28 (D) 35
86. A batsman made 110 runs in which
(A) Rs. 15000 (B) Rs.10500 3 fours and 8 six including. Find out
(C) Rs.10050 (D) Rs.10000 the percentage of run that made by
82. Population of a town is increased by him running between the wickets?
4% every year. Present population is 110 3
50,000. Then find out the population 8
after 2 years?
4%
50,000 2
5 6
(A) 45% (B) 45 % (C) 54 % (D) 55%
(A) 53900 (B) 54000 11 11

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 50.

87. A number firstly increased by 20% 2

again increased by 20%. By what 2
percentage should be decrement in
the number to make it initial?
20% 20%
(A) 12% (B) 15% (C) 16% (D) 18%
92. Due to decreament of 20% in price of
oranges a person can purchase 20
5 11 more orange in 40 rs. Then find the
(A) 30 % (B) 19 % (C) 40% (D) 44% new price ?
9 31
88. It's given 10% of the income A = 15% 20%
of B = 20% of C. The total income of 40 20
A, B, & C 7800. Then find out the
income of B? (A) 40 paisa (B) 50 paisa
A 10% = B (C) 56 paisa (D) 69 paisa
15% = C 20% 93. Due to 16% increment in the fare of
7800 B train that the traffic of passanger is
decreased by 6%. After it the daily
(A) Rs. 3600 (B) Rs.3000
collection of station is increased by
(C) Rs.2400 (D) Rs.1800
5424 Rs. Then find out the daily
89. First a number is decreased by 10%,
collection of Station before increment?
than again it increased by 10%. Such
a way the resultout number is 50% 16%
less than the initial number. Then 6%
find out the initial number? 5424
10%
10 (A) 66000 (B) 60000
50 (C) 64000 (D) 68000
(A) 5900 (B) 5000 (C) 5500 (D) 5050 94. Average marks is x% of passed
90. A man spends 75% of his income. If students in an exam and average is
his income increased by 20% and y% of failed students. Average marks
expenditures also increased by 10%. is z% of the total students. Find out
Then find out the percentage the percentage of students who failed
increament in his savings? in the exam in terms of x,y and z ?
75%
20% x% y%
10 z%
x, y z
(A) 10% (B) 25% (C) 37% (D) 50%
91. Two litres mixture are drawn from a zx zx
mixture of 5 Litres of Alcohal and (A) y  x (B) y  z
Water, in which 20% is alcohal and
2 litres water added in the mixture. yx yz
Then find out the percentage of (C) z  y (D)
Alcohal in the new mixture? xz
20% 5

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 51.

95. In an election between two candidates 60

68 votes declared invalid. Winning can-
didate got 52% of total valid votes and
gets elected by majority of 98 votes.
Find the total votes. (A) 25% (B) 37.5%
(C) 62.5% (D) 33.33%
68 100. If the length of rectangle increases by
30% and the breadth decreases by
52% 98 12%, then find the % change in the
area of the rectangle.
(A) 2518 (B) 2450 (C) 3200 (D) 3280 30% 12
96. 10% of the voters did not cast their
vote in an election between two candi-
dates. 10% of the votes polled were (A) 13.4% increase (B) 14% increase
found invalid. The successful candidate (C) 14.3% increase (D) 14.4% increase
got 54% of the valid votes and won by a 101. If the area of a squars increases by
majority of 1620 votes. The number of 96%, then the side of a square in-
voters enrolled on the voters’ list was : creases by-
10% 96
10%
54% 1620 (A) 30% (B) 40% (C) 50% (D) 35%
102. A person spends 30% of monthly salary
on rent, 25% on food, 20% on children's
(A) 25000 (B) 33000 education and 12% on electricity and
(C) 35000 (D) 40000 the balance of L1040 on the remaining
97. Out of 450 students of school, 325 play items. What is the monthly salary of
football, 175 play cricket and 50 nei- the person?
ther play football nor cricket. How many 30 25
students play both football and cricket? 20% 12%
450 325 L1040
175 50
(A) L8000 (B) L9000
(C) L9600 (D) L10600
103. Mr. Amit gave 40% of the money he
(A) 50 (B) 75 (C) 100 (D) 225
had, to his wife. He also gave 20% of
98. If the price of sugar is raised by 25%,
the remaining amount to each of his
find by how much percent a
three sans. Half of amount now left
householder must reduce his
was spent on other items and the re-
consumption of sugar so as not to
maining of L12,000 was deposited in
increase his expenditure?
the bank. How much money did Mr.
25% Amit have initially?

(A) 10 (B) 20 (C) 18 (D) 25

99. If the price of diesel increases by 60%, by
how much must a user cut down his
consumption so that his expenditure on (A) L100000 (B) L150000
diesel reamins constant? (C) L200000 (D) L120000

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 52.

104. Fresh grapes contain 90% water by 108. A recduction of 20% in the price of
weight while dried grapes contain 20% sugar enables a person to by 3 kg more
water by weight. What is the weight for L300. Find the reduced price per
of dry grapes available from 20 kg of kg of sugar.
fresh grapes?
90%
20%
(A) L25 (B) L20
(A) 2 kg (B) 5 kg (C) L30 (D) L15
(C) 2.5 kg (D) 10 kg 109. Out of 2500 people, only 60% have the
105. Sea water contains 5% salt by weight. saving habit. If 30% save with bank,
How many kg of fresh water must be 32%. with post office and the rest with
added to 60 kg of sea water for the shares, the number of shareholders
content of salt in solution to be made are
3%.
5%

3%
(A) 450 (B) 570
(A) 30 (B) 35 (C) 950 (C) 1250
(C) 40 (D) 45 110. There is a rebate of 15% if electric bills
106. The total population of a village is 5000. are paid in time. A man got a rebote of
The number of males and females L54 by paying the bill in time. His
increases by 10% and 15% respectively electric bill was:
and consequently the population of the
village becomes 5600. What was the 15%
number of males in the village?

10% 15% (A) L360 (B) L380

(C) L300 (D) L350
111. To an examination, a candidate needs
(A) 2000 (B) 2500 40% marks. All questions carry equal
(C) 3000 (D) 4000 marks. A candidate just passed by
107. Due to reduction of 25% in the price of getting 10 answers correct by
attempting 15 of the total questions.
1
sugar, a man is able to buy 7 kg more How many questions are there in the
2
examination?
for L360. Find the original rate of sugar

1
7
2

(A) L16 (B) L18

(A) 25 (B) 30
(C) L20 (D) L25
(C) 40 (D) 45

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 53.

112. There are some coins and rings of

either gold or silver in a box. 60% of
the objects are coins, 40% of the rings
Answer Key
are of gold and 30% of the coins are of Exercise - 1
silver. What is the percentage of gold
articles? 1. (A) 2.(C) 3. (B) 4. (D) 5. (A) 6.(A)
7. (A) 8.(B) 9.(A) 10.(A) 11.(B) 12.(A)
60 % 13.(D) 14.(B) 15.(B) 16.(A) 17.(D) 18.(C)
40 % 30 % 19.(B) 20.(D) 21.(D) 22.(C) 23.(D) 24.(A)
25.(C) 26.(B) 27.(B) 28.(D) 29.(C) 30.(A)
(A) 16 (B) 27 (C) 58 (D) 70 31.(C) 32.(A) 33.(A) 34.(D) 35.(D) 36.(B)
113. In a test consisting of 80 questions, a
37.(D) 38.(B) 39.(B) 40.(D) 41.(C) 42.(A)
student answered 75% of the first 60
questions correctly. The percentage of 43.(C) 44.(D) 45.(C) 46. (C)
the other questions she needs to Practice Exercise
answer correctly so that her score on
1. (B) 2. (A) 3. (C) 4. (B) 5. (A) 6. (A)
the entire examination be 80% is:
7. (A) 8. (C) 9. (A) 10. (B) 11. (B) 12. (A)
75% 13. (A) 14. (A) 15. (B) 16. (A) 17. (A) 18. (A)
19. (A) 20. (A) 21. (B) 22. (C) 23. (C) 24. (B)
25. (B) 26. (C) 27. (B) 28. (D) 29. (C) 30. (D)
(A) 20% (B) 87.5% (C) 50% (D) 95% 31. (C) 32. (C) 33. (B) 34. (B) 35. (C) 36. (C)
114. In an exam A secured 10% more 37. (B) 38. (C) 39. (D) 40. (A) 41. (B) 42. (A)
marks than B. B secured 5% more
marks then C. If C secured 300 marks 43. (B) 44. (A) 45. (A) 46. (D) 47. (D) 48. (C)
out of 400 marks. then find out the 49. (B) 50. (B) 51. (D) 52. (A) 53. (C) 54. (C)
marks of A? 55. (C) 56. (B) 57. (A) 58. (C) 59. (D) 60. (B)
A B 10% 61. (B) 62. (B) 63. (B) 64. (B) 65. (B) 66. (B)
B C 5%
67. (C) 68. (C) 69. (B) 70. (A) 71. (C) 72. (C)
C 400 300
73. (D) 74. (A) 75. (C) 76. (D) 77. (D) 78. (B)
A
(A) 310.5 (B) 325.5 (C) 350 (D) 346.5 79. (B) 80. (D) 81. (A) 82. (C) 83. (C) 84. (B)
85. (C) 86. (B) 87. (A) 88. (C) 89. (B) 90. (D)
91. (A) 92. (A) 93. (B) 94. (A) 95. (A) 96. (A)
97. (C) 98.(B) 99.(B) 100.(D) 101.(B)102.(A)
103.(A)104.(C) 105.(C) 106.(C) 107.(A)108.(B)
109.(B) 110.(A) 111.(A) 112.(C) 113.(D) 114.(D)

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 54.

Hints and Solutions

Practice Exercise
26
1. 100  75  ×100 = 52%
50
25 100 1 7. Cube
×100  = 33 % Ans.
75 3 3
1
80 60 10%  10 11
10
2. 10x × =y× +3
100 100 10 11
40x – 3y = 15 ...(1) 10 11
80 90 1000 1331
y× = 10x × +6
100 100 331
×100 = 33.1% Ans
 45x – 4y = –30 ...(2) 1000
multiply by 3 for Equations (2) – multiply by 8.
4 for Equations (1)
1
x = 6, y = 75 20%  5 6
5
= 10x + y  60+75 = 135 Ans
1
4 20%  5 6
3. ×100 5
100
1
1 50%  2 1
4% = 2
25
50 36
14
4% 3.75% ×100 = 28%
50
9.
Rs. 48 less
2
24 0.25 40%  5 7
x× × = 48 5
25 100
2
48  25  100 40%  5 7
 x= 5
24  0.25
1
 x = Rs. 20,000 50%  2 1
2
40  20 50 49
4. +40 – 20 –
100
1
40 – 28 = 12% ×100 = 2%
50
20  10 10.
5. 20 + 10 + = 32%
100
1
6. 20% 5 6
5
1 5 6
l = 50%  2 1
2 5 6
1 125 216
b = 20% 5 6
5 91 364
 ×100 = = 72.8%
125 5
1
h = 20%  5 4
5
50 24
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 55.

11. (P) × (C) = (E) 16. 20 ltr

W S
60% 40%
1 12 ltr 8 ltr
P 20% 5 6
5 +5
2 3 17 ltr 8 ltr
C
5 6
1 8
E = 50% 2 3  ×100 = 32% Ans.
2 25
4 5 17. I II III
1
126 105 100
= ×100 = 25% 126
4
 ×100 = 120% Ans.
12. 105
P = 50%  2 3 18. 100
5 6
C
2 3
W L
5 4 52% 48%
1
E = 20% 5 6
5 4%
1 7200
=5:4= ×100 = 20% = ×100 = 180000 Ans.
5 4
13.
1
19. 100
P = 20%  5 6 –20% voS/k
5
10 9 3
80
C= =2  60%
5 6 2
4 3 W L
1 48 32
E = 10% 10 9
10
16
1
= 4 : 3 = ×100 = 25%
4 28800
= ×100 = 180000 Ans.
4 16
14. E = P × C = ×C
5 4
5 20. E=P×C ×C
5
=
4 40
5
40 =
= × 5 = 50 kg 4
4
15. 35% + 68 = 40% – 22 100
= =4
5% = 90 55

90 100
100% = ×100 = 1800 = =5 Ans.
5 45

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 56.

20 66 5
x x 29. 350× + x = 1256×
100 2 100 8
21. 50 = 231 + x = 785  x = 554
y y 5
100
3 75 25
30. 4240× × × = 53×9 = 437
120x 5 100 100
100  2 4x 2 x 1 30
150y 5  5y =  y = Ans. 80 
5 2 100
100 31. = 24  x = 1
x
x x
22. = y 32. = y

160 125
x x
100 2 x 3 100 5 x 8
60 =  y =  200 =  y =
y 5 20 y 9 9
100 100
23. =x 33. I II III
= 20×x 130 140 100
= 30×x (I) 130 6
30x  20x (II) ×100 = 140 ×100 = 92 7 %
% = ×100 = 50%
20x
1 1 1
24. = 40x 34. %= × = 0.005
2 2 100
= 50x
60 1
50x  40x 35. = ×100 = 37 %
= ×100 = 25% 160 2
40x 36. = 5x : 4x
40  ( 20) 40
25. = 40 + (–20) + 5x × = 12
100 100
= 12% x=6
26. =x 50
= 4x = 24× = 12
90 100 100
x× = 30  x =
100 3 7
37. = 400× = 28
100 100
R% 40
3 9
= 6400× = 576
100 120 100
×R% = 40  R =
3 100 604 151 15
= 20% (I+II) = ×100 = =8 %
6800 17 17
R 25 1 38. x
27. = ×100 = ×100 = 33 %
100  R 75 3 40
x× + 24 = x
25 100
28. x× = 182  x = 728
100  2x + 120 = 5x  x = 40

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 57.

39. = 28%, = 22% 100 90

=0 49.
= 100–(28+22–0) = 50% 10
xy 10 1
40. = x+ y + ×100 = 11 %
100 90 9

15  20 1
= 20 + 15 – = 2% 50. 20%  5 6
100 5

40 1
41. A = B× 20%  5 4
100 5
25 24
25
B = C× 1
100 = ×100 = 4% Ans.
25
25 40
A = C× × =C 10% 2nd Method
100 100
42. I II III 20  20
= 20–20– = 4%
70 63 100 100
1
70  63 51. 20% 
= ×100 = 10% 5
70
4  800
43. 0.003 = 0.3%
1  200
100x 5  1000 Ans.
44. = ×25%  = = 4x
25 2nd method
= × 40%  = 2.5x x 20%
80
x 4x 2.5x x× = 800  x = 1000
100
4x 10 1
×100 = 160 52. = ×100 = 11 %
2.5x 100  10 9
10 1 2nd method
45. y, x = ×100 = 9 %
110 11
60 3 100 10%
  90
46. A× = B×
100 4 10 1
= ×100 = 11 %
3 3 A 5 90 9
A× = B×  = 3rd method
5 4 B 4
47. =x 10 1
= ×100 = 11 %
110 120 90 9
= x× × = 33 53. Old% × old value = new% × new value
100 100
40 × 50 = x×25
 132 x = 3300  x = 25
 x = 80
20  20
48. 20+20 + = 44% = 80–50 = 30
100
54. 50×9 = x×30
x = 15
= 15–9 = 6

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 58.

55. 300 × 60 = x × 50 60 30
 x = 360 x× +x× = 783
100 100
= 360–300 = 60  9x = 7830
56. = 40% = (178+22)  x = 870
200 120 125
100% = ×100 = 500 64. = 8500× × =12750
40 100 100
AaBbCc 65. = a2
57. = ×100
ABC 1
10%  10 11
10 20 10 10
40   50   60 
= 100 100 100 ×100 1
40  50  60 10%  10 11
10
20 1 100 121
= ×100 = 13 %
150 3 21
% = ×100 = 21%
10 15 20 100
58. A× = B× = C×
100 100 100 10  10
A:B:C=6:4:3 66. = 10–10– = 1%
100
4 67.
B = ×78000 = 24000
13 40  30
59. = 40+30+  82%
100
12 : 17 :3 = 32 68. =
20%  30%  50%  × 75%
2.4 5.1 1.5 =9 4 4 75
9 1 R3 =  ( r13 + r23 + r33 ) ×
3 3 100
%= ×100 = 28 %
32 8
3
5 R3 = (13 + 23 + 33)×
4
60. dis. = 1,00,00,000× = Rs. 500000
100 R3 = 27  R = 3
61. 4% = 720 69. = 100%
720 = 71%, = 29%
100% = ×100 = 18000
4 = 71–29 = 42% = 756
756
= 20% = 100% = ×100 = 1800
42
120% = 100%
90 110
18000 70. =x× × = x–50
100 100
= ×120 = 15000
120
99x
40  50  –x = –50  x = 5000
100
62. = –40 + 50 –  10%
100 71. = 100–(70+65–73)
= 173 – 135 = 38%
63. =x

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 59.

72. = 100–(30+35–25)  x = 15000

360 = 60% 104 104
82. 2 = 50000× × = 54080
360 100 100
100% = ×100
60
80 75
(100%) = 600 3x   2x 
100 100
73. I II III 83. = ×100
3x  2x
75 80 100 = 78%
75 84. = 40 + 20 + 10 + 10 = 80%
, = ×100 = 93.75%
80
= 20%  1500
74. = (72+44)–100
1500
 16% = 40 = ×100 = Rs. 7500
20
40
100% = ×100 = 250 85. =
16
13500 – 9000  4500
110 120
75. 2 = 18000× × 14
100 100 = 13500 ×
100
= 23760
76. Old% × old value = new% × new value 7
9000×
90×100 = 50×x 100
 x = 180  1890 – 630 = 1260
= 180–100 = 80 1260
% = ×100 = 28%
77. 40×90 = 80×x 4500
 x = 45 86. = 110
= 45–40 = 5 pkSds NDdks = 3×4+8×6 = 60
A
+25%
B
+20%
C
= 110–60 = 50
78.
100% 125% 150% 50
C A = 150–100 = 50% %= ×100
110
79. 100% 5
= 45 %
2 11
66 %
3
87.
1 +20% +20%
33 % = 1200 100% 120% 144%
3 44%

1200 200
= 100 / 3 × = 2400 44 5
3 = ×100 = 30 %
144 9
80. x
–10%
y
10%
125 10 15 20
88. A× =B× =C×
100 100 100
110 90
x = 125× ×  x = 123.75 A : B : C
100 100
12 : 8 : 6
81. =x
7800
100 100 B’s income = ×8 = Rs. 2400
x = 3600× × 36
80 30

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 60.

90 110 95.
89. x× × = x – 50
100 100
100%
99x = 100x – 5000  x = 5000
Ans. (68–
90.
100% 20%
  120% W C
75% 10% 82.5% 52 48
  (100%-68) (100%-68)
100 100
25% 37.5%
12.5 52 48
% = ×100 = 50% (100%–68) –(100%–68) = 98
25 100 100
91. 5 4
(100%–68) = 98
100
100% – 68 = 2450
100% = 2518 Ans.
20% 80%
4 96.
1
1 = 40% 100%
10%
40
1× = 0.4 = 0.6 90%
100
=5 10%
81%
0.6
%= ×100 = 12%
5
W C
20 40 54 46
92. = × = 40 81× – 81× = 1620
100 20 100 100
16  6
93. = 16–6– = 9.04% = 5424
100 8
81× = 1620
5424 100
= ×100 = 60000
9.04 1620  100  100
100% = = 25000 Ans.
81  8
94.
x y 97. = 450
= 325
= 175
z
= 50
= 450–50 = 400
z-y x-z
= 325 + 175 – 400
=z–y+x–z=x–y
xz zx
% = xy = yx %

Patwar Jaipur Batch Contact : 7877761170, 9462047175

 61.

= 500–400 = 100 Ans. = 40%

98. = 100–40 = 60%
1 20  3
= 25%  4 : 5 = 60× = 36%
4 100
5 : 4 = 60% – 36% = 24%
1 : 1
24
1 = = 12%
×100 = 20% 2
5 = 12%
99. 12%  12000
3 12000
60%  5 : 8 = ×100 = 100000
5 12
8 : 5 104. × = ×
1 : 1
20×10 = x×80
3
×100 = 37.5% 10
8 x= = 2.5 kg Ans.
4
100.
105. 60×5 = (60+x)3
3 60 + x = 100
l = 30%  10 13
10 x = 40 kg Ans.
3 106. = 5000
b = 12%  25 22
25 =x
250 286 = (5000–x)
36 110 115
= ×100 = 14.4% x× + (5000–x)× = 5600
250 100 100
101.  110x + 575000 – 115x = 560000
100 196  5x = 15000
 x = 3000
100 196
10 14 = 3000 Ans.
107.
4
×100 = 40% Ans. 1
10 25%  4 : 3
102. = 100% 4
3 : 4
= 30%
1 : 1
= 25%
3 : 4
= 20%
1
= 12% diff. = 4–3 = 1  7 kg
2
= 100 – (30+25+20+12)
= 100 – 87 = 13% 1
1  7 kg  Rs. 360
13%  1040 2

1040
1kg  Rs. 48
= ×100 = 8000
13
103. = 100%

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 62.

48 54
= = Rs. 16 = ×100 = 360
3 15
108. 111. = 40%
1 = 10
20%  5 : 4
5 10
4 : 5 = ×100 = 25
40
1 : 1
diff. = 5–4 = 1  3kg
1  3 kg  Rs. 300 60 40
1kg  Rs. 100 112.
70% 30% 40% 60%
100
= = Rs. 20 Ans.
5 70 40
= 60 × + 40×
109. = 2500 100 100
= 60% = 42 + 16 = 58 Ans.
60 113. = 80
= 2500× = 1500 60 75%
100
30 75
30% = 1500 × = 450 = 60 × = 45
100 100
32 80%
32% = 1500 × = 480
100 80
= 80× = 64
= 1500 – (450 + 480) 100
1500 – 930 = 570 Ans. = 64 – 45 = 19
110. = 15% x
15%  54 = 20× = 19
100
 x = 85% Ans.
A B C
346.5 315 300
114.
10% 5%

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