Discount
 A retailer buys a sewing machine at a discount of 15% and sells it for ₹ 1955. Thus he makes a profit of 15%. The discount is

 ₹ 270
 ₹ 290
 ₹ 300
 ₹ 310

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Marked price of sewing machine = Rs. x
C.P. for the retailer = 1955 × 100 = Rs. 1700 115 ∴ x × 85 = 1700 100 ⇒ x = 1700 × 100 = Rs. 2000 85
∴ Discount = 2000 – 1700 = Rs. 300Correct Option: C
Marked price of sewing machine = Rs. x
C.P. for the retailer = 1955 × 100 = Rs. 1700 115 ∴ x × 85 = 1700 100 ⇒ x = 1700 × 100 = Rs. 2000 85
∴ Discount = 2000 – 1700 = Rs. 300
 A trader who marks his goods up to 50% offered a discount of 20%. What % profit the trader makes after offering the payment ?

 30%
 70%
 20%
 50%

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∴ Required discount = 50 − 20 − 50 × 20 % = 20% 100
Detailed Method
C.P. of article = Rs. 100
Marked price = Rs. 150S.P. = 150 × 80 = Rs. 120 100
Gain per cent = 20%Correct Option: C
∴ Required discount = 50 − 20 − 50 × 20 % = 20% 100
Detailed Method
C.P. of article = Rs. 100
Marked price = Rs. 150S.P. = 150 × 80 = Rs. 120 100
Gain per cent = 20%
 If in a sale, the discount given on a saree is equal to onefourth the marked price and the loss due to this discount is 15%, then the ratio of the cost price to the selling price is

 3 : 4
 4 : 3
 10 : 17
 20 : 17

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Let C.P. of article be = ₹ x
∴ S.P. =
₹85x 100 ∴ Required ratio = x : 85x = 100 : 85 = 20 : 17 100 Correct Option: D
Let C.P. of article be = ₹ x
∴ S.P. =
₹85x 100 ∴ Required ratio = x : 85x = 100 : 85 = 20 : 17 100
 X purchased an item at a discount of 10% and sold it to Y at 10% profit. The marked price and the price for which Y purchased the item are in ratio

 1 : 1
 10 : 99
 20 : 99
 100 : 99

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Marked price of article = ₹ x
C.P. for X = 90x = ₹ 9x 100 10 C.P. for Y = 9x × 110 = ₹ 99x 100 100 ∴ Required ratio = x : 99x = 100 : 99 100 Correct Option: D
Marked price of article = ₹ x
C.P. for X = 90x = ₹ 9x 100 10 C.P. for Y = 9x × 110 = ₹ 99x 100 100 ∴ Required ratio = x : 99x = 100 : 99 100
 The discount on a certain sum of money,
Find the sum.due at the end of 2 1 years at 2 2 % p.a. is ₹ 78. 4 3

 ₹ 1,278
 ₹ 1,300
 ₹ 1,378
 ₹ 1,400

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Sum = discount × 100 time × rate = 78 × 100 9 × 8 4 3 = 78 × 100 = ₹ 1300 6 Correct Option: B
Sum = discount × 100 time × rate = 78 × 100 9 × 8 4 3 = 78 × 100 = ₹ 1300 6