Q30 of 90 Page 133

On selling a calculator for Rs. 1325, a man gain 6%. For how much should he sell it to gain 12 %?

Selling price of a calculator = Rs. 1325


Let the cost price of calculator = Rs. x


Percentage gain = SP – CP



0.06 x = 1325 – x


1.06 x = 1325


X = 1250


Let’s suppose SP is 'y' in which he gained 12%


Gain = SP – CP




Y = Rs. 1400


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