Discount
 While selling a shirt, a shopkeeper gives a discount of 7%. If he had given a discount of 9% he would have got ₹ 15 less as profit. The marked price of the shirt is

 ₹ 750
 ₹ 720
 ₹ 712.50
 ₹ 600

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Let the marked price of the shirt be y.
Difference of discounts = ( 9  7 ) = 2%
∴ 2% of y = 15⇒ y × 2 = 15 100
Correct Option: A
Let the marked price of the shirt be y.
Difference of discounts = ( 9  7 ) = 2%
∴ 2% of y = 15⇒ y × 2 = 15 100 ⇒ y = 15 × 100 = ₹ 750 2
 A trader gains 15% after selling an item at 10% discount on the printed price. The ratio of the cost price and printed price of the item is

 18 : 23
 17 : 18
 17 : 23
 18 : 25

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Given that , gains = 15% , discount = 10%
Let the CP of article be p and its marked price be q.
According to the question,
90% of q = 115% of p⇒ q × 90 = p × 115 100 100 ⇒ p = 90 = 18 ⇒18 : 23 q 115 23
Second method to solve this question :
Here, r = 15%, D = 10%
Using the given formula ,M.P. = 100 + r C.P. 100 − D
Correct Option: A
Given that , gains = 15% , discount = 10%
Let the CP of article be p and its marked price be q.
According to the question,
90% of q = 115% of p⇒ q × 90 = p × 115 100 100 ⇒ p = 90 = 18 ⇒18 : 23 q 115 23
Second method to solve this question :
Here, r = 15%, D = 10%
Using the given formula ,M.P. = 100 + r C.P. 100 − D M.P. = 100 + 15 C.P. 100 − 10 M.P. = 115 C.P. 90 C.P. = 90 M.P. 115 C.P. = 18 M.P. 23
⇒ C.P. : M.P. = 18 : 23
 While selling a cooler, a shopkeeper gives a discount of 10% on the marked price. If he gives a discount of 12% he earns ₹ 35 less as profit. The marked price of the cooler is

 ₹ 1,650
 ₹ 1,625
 ₹ 1,725
 ₹ 1,750

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Let the market price of the cooler be y,
According to the question,
(12 – 10)% of y = 35
⇒ 2% of y = 35⇒ y × 2 = 35 100
Correct Option: D
Let the market price of the cooler be y,
According to the question,
(12 – 10)% of y = 35
⇒ 2% of y = 35⇒ y × 2 = 35 100 ⇒ y = 3500 = ₹ 1750 2
 An article is sold at a discount of 20% and an additional discount of 30% is allowed on cash payment. If Vidya purchased the article by paying ₹ 2240 in cash, the marked price of the article was

 ₹ 4000
 ₹ 4368
 ₹ 4400
 ₹ 4480

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Let the marked price of the article be y.
For successive discounts of 30% and 20% ,Single Equivalent discount = 30 + 20 − 30 × 20 % 100
Single Equivalent discount = (50 – 6)% = 44%
⇒ (100 – 44)% of y = 2240⇒ y × 56 = 2240 100
Correct Option: A
Let the marked price of the article be y.
For successive discounts of 30% and 20% ,Single Equivalent discount = 30 + 20 − 30 × 20 % 100
Single Equivalent discount = (50 – 6)% = 44%
⇒ (100 – 44)% of y = 2240⇒ y × 56 = 2240 100 ⇒ y = 2240 × 100 = ₹ 4000 56
 Ravi buys an article with a discount of 25% on its marked price. He makes a profit of 10% by selling it at ₹ 660. The marked price of the article was:

 ₹ 600
 ₹ 700
 ₹ 800
 ₹ 685

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Here , selling price = ₹ 660 , discount = 25% and profit = 10%
CP of the article for Ravi = 660 × 100 = ₹ 600 110
Ravi bought the article at the discount of 25%
∴ 75% of marked price = ₹ 600
Correct Option: C
Here , selling price = ₹ 660 , discount = 25% and profit = 10%
CP of the article for Ravi = 660 × 100 = ₹ 600 110
Ravi bought the article at the discount of 25%
∴ 75% of marked price = ₹ 600Marked price = 600 × 100 = ₹ 800 75