Question

Toffees are bought at 15 for Rs.20.How many toffees would be sold for Rs. 20 so as to gain 25%.
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Answer 1

Answer:

Number of toffee that will be bought for 20 Rs = 20 / ( 5 / 3 ) = 20 * 3 / 5 = 12 . Therefore, By selling 12 toffees for 20 Rs. We will get 25% profit.Nov 19, 2017

Step-by-step explanation:

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Answer 2

Answer:

12

Step-by-step explanation:

C.P. of 15 toffees = Rs. 20

C.P. of 1 toffee = 20/15 = Rs. 4/3

Gain= 25%

S.P. of 1 toffee = (100+gain%/100) * C.P. = 125/100* 4/3 = Rs. 5/3

If 1 toffee= Rs. 5/3, then 20 toffees = 3/5*20 = 12 toffees.

Therefore, 12 toffees would be sold for Rs. 20 so as to gain 25%