Discount
 State electricity board gives 15% discount on electric bills if it is paid before due date. One person gets Rs. 54 as discount. The amount of actual bill was :

 Rs. 362
 Rs. 359
 Rs. 360
 Rs. 361

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Let the amount of actual bill be Rs. x.
According to the question,x × 15 = 54 100 ⇒ x = 54 × 100 = Rs. 360 15 Correct Option: C
Let the amount of actual bill be Rs. x.
According to the question,x × 15 = 54 100 ⇒ x = 54 × 100 = Rs. 360 15
 The total discount on Rs. 1860 due after a certain time at 5% is Rs. 60. Find the time after which it is due

 9 months
 8 months
 7 months
 10 months

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Required time
=60 × 100 = 2 year 1800 × 5 3 = 2 × 12 months = 8 months 3
Correct Option: B
Required time
=60 × 100 = 2 year 1800 × 5 3 = 2 × 12 months = 8 months 3
 Two blends of a commodity costing Rs. 35 and Rs. 40 per kg. respectively are mixed in the ratio 2 : 3 by weight. If one–fifth of the mixture is sold at Rs. 46 per kg and the remaining at the rate of Rs. 55 per kg. the profit percent is

 50
 30
 40
 20

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Let 5 kg of mixture be prepared.
∴ C.P. of 5 kg of mixture
= Rs. (2 × 35 + 3 × 40)
= Rs. (70 + 120)
= Rs. 190
Total S.P. of this mixture
= Rs. (46 + 4 × 55)
= Rs. (46 + 220) = Rs. 266∴ Profit per cent = 266 − 190 × 100 190 = 7600 = 40% = 1 190 Correct Option: C
Let 5 kg of mixture be prepared.
∴ C.P. of 5 kg of mixture
= Rs. (2 × 35 + 3 × 40)
= Rs. (70 + 120)
= Rs. 190
Total S.P. of this mixture
= Rs. (46 + 4 × 55)
= Rs. (46 + 220) = Rs. 266∴ Profit per cent = 266 − 190 × 100 190 = 7600 = 40% = 1 190
 A company showroom gives a discount of 20% on the second grade shoes and a further
discount of 15% on shareholder’s coupon. The total discount, a coupon holder will get is

 32%
 36%
 35%
 38%

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Required single discount = x + y − xy % 100 Required single discount = 20 + 15 − 20 × 15 % 100
= (35 – 3)% = 32%Correct Option: A
Required single discount = x + y − xy % 100 Required single discount = 20 + 15 − 20 × 15 % 100
= (35 – 3)% = 32%
 A dealer buys an article listed at Rs. 100 and gets successive discounts of 10% and 20%. He spends 10% of the cost price on transportation. At what price should he sell the article to earn a profit of 15%?

 ₹ 90.80
 ₹ 92.00
 ₹ 91.08
 ₹ 91.20

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Single equivalent discount = 10 + 20 − 10 × 20 % 100
= (30 – 2)% = 28%
∴ C.P. of article = 100 – 28 = Rs. 72Actual cost price of article = 72 × 110 = Rs. 79.2 100
∴ For a profit of 15%,Required S.P. = 79.2 × 115 = Rs. 91.08 100 Correct Option: C
Single equivalent discount = 10 + 20 − 10 × 20 % 100
= (30 – 2)% = 28%
∴ C.P. of article = 100 – 28 = Rs. 72Actual cost price of article = 72 × 110 = Rs. 79.2 100
∴ For a profit of 15%,Required S.P. = 79.2 × 115 = Rs. 91.08 100