Q8 of 94 Page 140

On selling 100 pencils a man gains the selling price of 20 pencils. His gain per cent is

Let × be the CP of pencil


SP of 100 pencils = 100x


Gain of 20 Pencils = 20x


CP = SP - Gain


= 100 × – 20x


= 80x




= 25%

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