| | Question 24

The cost price of 12 books is equal to the selling price of 10 books. The gain percent is :
(A) 10 %
(B) 15 %
(C) 20 %
(D) 25 %


Answer: (C)

Explanation: Given 12 CP = 10 SP
CP/SP = 10/12 = 5/6
Profit = SP – CP
=> 6 – 5 = 1
Profit (%) = profit/CP x 100
=> 1/5 x 100
=> 20 %

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