## Discount

1. Two successive discounts of 20% and 20% are equivalent to a single discount of
1. 42%
2. 40%
3. 36%
4. 34%
1. Given, r1 = 20% and r2 = 20%
∴ Single discount equal to r1 and r2
= (r1 + r2 - r1 x r2) / 100 %

##### Correct Option: C

Given, r1 = 20% and r2 = 20%
∴ Single discount equal to r1 and r2
= (r1 + r2 - r1 x r2) / 100 %
= (20 + 20 - 20 x 20) / 100
= 40 - 4 = 36%

Report

1. On a 20 % discount sale, an article costs 596 . What was the original price of the article ?
1. ₹ 720
2. ₹ 735
3. ₹ 745
4. ₹ 775
1. Let the original price of be N .
∴ At discount of 20% article costs ₹ 596
∴ 596 = (80 x N)/100

##### Correct Option: C

Let the original price of be N .
∴ At discount of 20% article costs ₹ 596
∴ 596 = (80 x N)/100
⇒ N = (596 x 100)/80
∴ N = 745
∴ original price = ₹ 745

Report

1. If an electricity bill is paid before due date, one gets a reduction of 4 % on the amount of the bill . By paying the bill before due date, a person got a reduction of ₹ 13 . The amount of his electricity bill was
1. ₹ 125
2. ₹ 225
3. ₹ 325
4. ₹ 425
1. Let amount of electricity bill = ₹ N
∴ 4% of N = 13
⇒ (4 x N)/100 = 13

##### Correct Option: C

Let amount of electricity bill = ₹ N
∴ 4% of N = 13
⇒ (4 x N)/100 = 13
⇒ N = 13 x 25 = ₹ 325

Report

1. A shopkeeper has announced 14% rebate on marked price of an article. If the selling price of the article is ₹ 645, then the marked price of the article will be?
1. ₹ 800
2. ₹ 810
3. ₹ 750
4. ₹ 775
1. Let the marked price of item = ₹ N
∴ {(100 - 14) /100 } of N = 645

##### Correct Option: C

Let the marked price of item = ₹ N
∴ {(100 - 14) /100 } of N = 645
⇒ N = (645 x 100)/86 = ₹ 750

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1. A merchant has announced 25% rebate on prices of ready made garments at the time of sale. If a purchaser needs to have a rebate of ₹ 400, then how many shirts, each costing ₹ 320, should he purchase?
1. 10
2. 7
3. 6
4. 5
1. ∵ Marked price of a shirt = ₹ 320
Discount on a shirt = 320 x 25/100 = ₹ 80

##### Correct Option: D

∵ Marked price of a shirt = ₹ 320
Discount on a shirt = 320 x 25/100 = ₹ 80

∴ Number of shirts has to be purchased to get a rebate of ₹ 400 = 400/80 = 5

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