Discount
 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?

 10
 7
 6
 5

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∵ Marked price of a shirt = ₹ 320
Discount on a shirt = 320 x 25/100 = ₹ 80Correct 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
 The difference between a discount of 40% on ₹ 500 and two successive discounts of 36% and 4% on the same amount is?

 ₹ 0
 ₹ 2
 ₹ 1.93
 ₹ 7.20

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∵ Single discount equivalent to 36% and 4%
= 36 + 4  {(36 x 4)/100} = 38.56Correct Option: D
∵ Single discount equivalent to 36% and 4%
= 36 + 4  {(36 x 4)/100} = 38.56
∴ Required difference
= {(40  38.56) x 500}/100 = 1.44 x 5 = ₹ 7.20
 A merchant marked the price on his goods 20% more than its cost price and allows a discount of 15%. His gain percent is

 1%
 2%
 10%
 15%

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Here, r = 20% and r_{1} = 15%
Required profit per cent =[ r(100  r_{1})/100]  r_{1}
= [20(100  15)/100]  15Correct Option: B
Here, r = 20% and r_{1} = 15%
Required profit per cent =[ r(100  r_{1})/100]  r_{1}
= [20(100  15)/100]  15
= 17  15
= 2%
 Rita bought a television set with 20% discount on the labelled price. She made a profit of ₹ 800 by selling it for ₹ 16800. The labelled price of the set was

 ₹ 10000
 ₹ 20000
 ₹ 20800
 ₹ 24000

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Let labelled price of TV = ₹ R
∴ SP of the TV = [R x (100  20)] / 100Correct Option: B
Let labelled price of TV = ₹ R
∴ SP of the TV = [R x (100  20)] / 100 = ₹ 4R/5
But 16800  800 = 4R/5
∴ x = (16000 x 5)/4 = ₹ 20000
 The marked price of an article is ₹ 500. It is sold on two successive discounts of 20% and 10%. The selling price of that article is

 ₹ 350
 ₹ 375
 ₹ 360
 ₹ 400

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∵ Marked price of an article = ₹ 500
The selling price of article after discount 20% and 10%
= 500 x {(100  20) / 100} x {(100  10) / 100}Correct Option: C
∵ Marked price of an article = ₹ 500
The selling price of article after discount 20% and 10%
= 500 x {(100  20) / 100} x {(100  10) / 100}
= 500 x (80/100) x (90/100)
= ₹ 360