Answering Exams

By selling Toffees at 20 for a rupee, a man loses 40 %. To gain 20 %, for one rupee he must sell?

By selling Toffees at 20 for a rupee, a man loses 40 %. To gain 20 %, for one rupee he must sell?

A. 16 toffees (Correct)
B. 20 toffees
C. 25 toffees
D. 24 toffees

Explanation:

He sells 20 toffees

S.P = Rs. 1 and loss = 4%

C.P = (11/96 × 1) = Rs. 25/24

Gain = 20%

S.P = Rs. (120/100 × 25/24) = Rs. 5/4

Rs. 5/4 toffees sold = 20

Rs. 1 toffees sold = (20 × 4/5) = 16

 

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