Question
If 15 buttons are bought at Rs 1 and sold at the rate of
10 buttons at Rs 1, what will be the percentage profit?Solution
The cost price of 15 buttons = 1 Rs CP of 1 button = 1/15 Rs and the selling price of 10 buttons = 1 Rs The selling price of 1 button = 1/10 Rs now the ratio of CP and SP = 1/15: 1/10 = 10:15= 2:3 Percent of profit = 1/2 ×100 = 50%
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