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Basic Intro
and Series
Rishav Sir
Basic Concept
• Cost Price (CP)
• Selling Price (SP)
• Profit = SP – CP
• Loss = CP – SP
Basic Concept
• Profit and Loss always calculated on CP
• Profit % = [(SP – CP)/ CP] *100
Practice Question (2020)
A person bought a car and sold it for Rs. 3,00,000. If he incurred a loss of 20%,
then how much did he spend to buy the car ?
A. Rs. 3,60,000
B. Rs. 3,65,000
C. Rs. 3,70,000
D. Rs. 3,75,000
Practice Question
Sohan while selling two cows of same cost made 10% profit on first cow
and 10% loss on the second cow. What is his overall profit/ loss?

A. he makes no profit and no loss

B. he makes a profit of 1%
C. he suffers a loss of 1%
D. he suffers a loss of 2%
Practice Question(2014)
If Sohan, while selling two goats at the same price, makes a profit of 10% on
one goat and suffers a loss of 10% on the other

A. he makes no profit and no loss

B. he makes a profit of 1%
C. he suffers a loss of 1%
D. he suffers a loss of 2%
Practice Question
A furniture seller sells two tables at Rs. 1500 each. He earned a profit of 20%
on one table and suffered a loss of 20% on the another table. Net profit or loss
in this deal is

A. 4% loss
B. 4% profit
C. Neither loss nor profit
D. 10% loss
Practice Question(2018)
A shopkeeper sells an article at Rs. 40 and gets X% profit. However, when he sells it at
Rs. 20 gets X% loss. What is the original cost of the article?
A. 10
B. 20
C. 30
D. 40
Practice Question
By selling 100 pens, a shopkeeper gains the selling price of 20 pens.
What is his gain percentage?
A. 15%
B. 20%
C. 25%
D. 30%
Practice Question
If selling price of 20 items is same as cost price of 25 items, then there is a net.
A. Profit of 20%
B. Profit of 25%
C. Loss of 20%
D. Loss of 25%
Practice Question
On selling 24 toys at Rs 1260, the shopkeeper faces a loss equal to Cost price of 6
toys. The cost price of 1 toy is
A. 60
B. 70
C. 80
D. 90
Practice Question (2013)
On selling 144 bicycles, John lost the selling price of 6 bicycles. His
percentage loss is

A. 4%
B. 6%
C. 8%
D. 10%
Practice Question
A shopkeeper bought some articles at 4 for Rs 5 and sold it for 5 for Rs 7. Find his
profit or loss percentage
A. 10% profit
B. 10% loss
C. 12% profit
D. 12% loss
Concept
• Discount = MP – SP
• Mark Price also called List Price
• Discount % = [(MP –SP)/ MP] * 100
Multiple Discounting/ Profit
Practice Question
A shopkeeper gives a discount of 50% on a T shirt worth Rs 1000.
Later, he further gives a discount of 50% on the item. How much will
the shirt be sold now?
A. 0
B. 250
C. 500
D. 750
Practice Question
A shopkeeper gives a discount of 25% on a T shirt worth Rs 1000.
Later, he further gives a discount of 40% on the item. How much will
the shirt be sold now?
A. 100
B. 350
C. 450
D. 650
Practice Question(2020)
A shop owner offers the following discount options on an article to a
customer:
I. Successive discounts of 10% and 20%, and then pay a service tax of 10%
II. Successive discounts of 20% and 10%, and then pay a service tax of 10%
III. Pay a service tax of 10% first, then successive discounts of 20% and 10%.

Which one of the following is correct?

A. 1 only is the best option for the customer
B. 2 only is the best option for the customer
C. 3 only is the best option for the customer
D. All the options are equally good for the customer
Practice Question
Ankit sold his TV to Mehak at a profit of 10%. Further, Mehak sold the TV to
Anamika at a profit of 25%. If Anamika pays Rs. 8250 for the TV, what did Ankit pay
for his TV?
A. Rs. 5500
B. Rs. 5750
C. Rs. 6000
D. Rs. 6250
Practice Question(2018)
A bookseller sold ‘a’ number of Geography textbooks at the rate of Rs x per book, ‘a+2’
number of History textbooks at the rate of Rs.(x+2) per book and ‘a-2’ number of
Mathematics textbooks at rate of Rs.(x-2) per book. What is his total sale in Rs?
A. 3x + 3a
B. 3ax + 8
C. 9ax
D. x³a³
Practice Question
A bottle is marked up by 100%. If the bottle is sold for Rs 360 after giving a discount of
20%, what is the cost price of bottle?
A. 200
B. 225
C. 250
D. 275
Practice Question
A trader fixed the price of an article in such a way that by giving a rebate of 10% on the
price fixed, he made a profit of 15%. If the cost of the article is Rs. 72. The fixed price
on it, is

A. Rs. 82.80
B. Rs. 90.00
C. Rs. 92.00
D. Rs. 97.80
Practice Question
A trader mixes three varieties of groundnuts costing Rs 50, Rs 20 and Rs 30
per kg in the ratio 2: 4 : 3 in terms of weight and sells the mixture at Rs 33 per
kg. What percentage of profit does he make?
A. 5%
B. 10%
C. 15%
D. 20%
Practice Question
A wholesaler allows a discount of 20 % on the list price to the retailer. The retailer sells at
5% below the list price. If the customer pays Rs.380 for an article what profit is made by
the retailer on it?
A. 20
B. 40
C. 60
D. 80
Practice Question
A wholesaler allows a discount of 20% on the list price to a retailer. The retailer sells at
5% discount on the list price. If a customer paid Rs. 114 for an article, what profit is
made by the retailer ?

A. Rs 20
B. Rs 19
C. Rs 18
D. Rs 17
Practice Question
Ankit purchased 15 dozen of eggs at the rate of Rs 60 per dozen. What is his profit
percentage if he sold the eggs at the rate of Rs 6.5 per egg?
A. 10%
B. 20%
C. 25%
D. 30%
Practice Question
A dishonest dealer sells his goods at cost price but he uses the weight of 800
gm instead of 1 Kg.
What is his gain percentage?
A. 20%
B. 25%
C. 33.33%
D. 50%
Practice Question
A dishonest dealer sells his goods at 10% profit but he uses the weight of
800 gm instead of 1 Kg. What is his gain percentage?
A. 25%
B. 33.33%
C. 35%
D. 37.5%
Practice Question
A shopkeeper sells his goods at a discount of 10% on marked price.
What price should he mark on a T shirt that costs him 1800 in order to
get 10% profit?
A. 1600
B. 1800
C. 2000
D. 2200
Practice Question
In a Diwali discount sale, a TV is listed at Rs. 25000 with a discount of 20%. What
additional discount on cooler must be offered to the customer to bring the net price to Rs.
16000?
A. 10%
B. 15%
C. 20%
D. 25%
 Practice Question (2008)
A person purchases 100 pens at a discount of 10%. Then, net amount of money spent
by the person to purchase the pens is Rs 600. The selling expenses incurred by the
person are 15% on the net cost price. What should be the selling price for 100 pens in
order to earn a profit of 25%?

A. 802.50
B. 811.25
C. 862.50
D. 875
Practice Question(2016)
A person allows 10% discount for cash payment from the marked price of a toy
and still he makes a 10% gain. What is the cost price of the toy which is marked
Rs. 770?

A. 610
B. 620
C. 630
D. 640
Practice Question(2019)
Rakesh had money to buy 8 mobiles of a specific company. But the retailer offered
very good discount on that particular mobile. Rakesh could buy 10 mobiles with
the amount he had. What was the discount retailer offered?

A. 15%
B. 20%
C. 25%
D. 30%
Thanks!