SSC/MATHS/201707/NUMBER SYSTEM-I/E&H/02
LECTURE-2
NUMBER SYSTEM-I ( -I)
Q.1. The value of 0.346 0.1333 is:/ 0.346 0.1333
(A) 0.48 (B) 0.4801 (C) 0.48 (D) 0.48
Q.2. When 0.47 is converted as a fraction, the result is:
0.47
47 46 46 47
(A) (B) (C) (D)
90 90 99 99
Q.3. 1.2 0.03
(A) 0.04 (B) 0.036 (C) 1.13 (D) 0.037
Q.4. The maximum value of F. In the following equation. 5E9 + 2F8 + 3G7 = 1114 where E,F,G each
stand for any digit.
5E9 + 2F8 + 3G7 = 1114 F E, F, G
(A) 8 (B) 9 (C) 7 (D) 5
Q.5. A number consists of two digits such that the digit in the ten's place is less by 2 than the digit in
6
the unit's place. Three times the number added to times the number obtained by reversing the
7
digits equals 108. The sum of digits in the number is:
6
7
(A) 8 (B) 9 (C) 6 (D) 7
Q.6. Five times of a positive integer is equal to 3 less than twice the square of that number. The
number is-/
(A) 3 (B) 13 (C) 23 (D) 33
Q.7. The largest among the numbers (0.1)2, 0.0121 , 0.12 and 0.0004 is-
(0.1)2, 0.0121 , 0.12 0.0004
(A) (0.1)2 (B) 0.0121 (C) 0.12 (D) 0.0004
2 4 2 4
Q.8. Fraction between and is : /
5 9 5 9
3 2 4 1
(A) (B) (C) (D)
7 3 5 2
4 2 7 5
Q.9. Arrangement of the fraction , – ,– , in ascending order is-
3 9 8 12
4 2 7 5
, – ,– ,
3 9 8 12
7 2 5 4 7 2 4 5 2 7 5 4 2 7 4 5
(A) –
,– , , (B) – ,– , , (C) – ,– , , (D) – ,– , ,
8 9 12 3 8 9 3 12 9 8 12 3 9 8 3 12
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SSC/MATHS/201707/NUMBER SYSTEM-I/E&H/02
Q.10. The sum of three consecutive odd natural numbers is 147 then the middle number is-
147
(A) 47 (B) 48 (C) 49 (D) 51
Q.11. The sum of first 20 odd natural numbers is equal to- / 20
(A) 210 (B) 300 (C) 400 (D) 420
Q.12. The sum of all natural numbers between 100 and 200, which are multiples of 3 is:
100 200
(A) 5000 (B) 4950 (C) 4980 (D) 4900
Q.13. Which one of the following is a factor of the sum of first 25 natural numbers?
25
(A) 26 (B) 24 (C) 13 (D) 12
Q.14. If the sum of five consecutive integers is S, then the largest of those integers in terms of S is-
S S
S – 10 S4 S5 S 10
(A) (B) (C) (D)
5 4 4 5
Q.15. The sum of the squares of 3 consecutive positive numbers is 365. The sum of the numbers is -
(A) 30 (B) 33 (C) 36 (D) 45
Q.16. Find three consecutive numbers such that twice the first, three times the second and four times
the third together make 191.
191
(A) 19, 20, 21 (B) 21, 22, 23 (C) 20, 21, 22 (D) 22, 23, 24
11 7
Q.17. Sum of three fractions is 2 . On dividing the largest fraction by the smallest fraction is
24 6
1
obtained which is greater than the middle fraction. The smallest fraction is-
3
11 7
2
24 6
1
3
5 3 5 3
(A) (B) (C) (D)
8 4 6 7
9
Q.18. The product of two positive numbers is 11520 and their quotient is . Find the difference of two
5
numbers.
9
11520
5
(A) 60 (B) 64 (C) 74 (D) 70
Q.19. In a test, one mark is awarded for each correct answer and one mark is deducted for each wrong
answer. If a boy answers all 20 questions of the test and gets 8 marks, the number of questions
answered correct by him was-
(A) 16 (B) 14 (C) 12 (D) 8
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