A man buys a certain number of articles at a rate of $15$ for Rs. $112.50$ and sells them at a rate of $12$ for Rs. $108$ . Find His gain as percentage;

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Solution

Cost price of one article $= R s \frac{112.50}{15} = \frac{22.5}{3} = R s 7.5$
Selling price of one article $= R s \frac{108}{12} = R s 9$
Profit on one article $= R s 9 - R s 7.5 = R s 1.5$
Profit % $= \frac{P r o f i t}{C o s t P r i c e} \times 100 = \frac{1.5}{7.5} \times 100 = 20$ %

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A man buys a certain number of articles at a rate of 15 for Rs. 112.50 and sells them at a rate of 12 for Rs. 108. Find His gain as percentage;

Cost price of one article =Rs112.5015=22.53=Rs7.5 Selling price of one article =Rs10812=Rs9 Profit on one article =Rs9−Rs7.5=Rs1.5Profit % =ProfitCostPrice×100=1.57.5×100=20 %

A man buys a certain number of articles at a rate of $15$ for Rs. $112.50$ and sells them at a rate of $12$ for Rs. $108$ . Find His gain as percentage;

Cost price of one article $= R s \frac{112.50}{15} = \frac{22.5}{3} = R s 7.5$
Selling price of one article $= R s \frac{108}{12} = R s 9$
Profit on one article $= R s 9 - R s 7.5 = R s 1.5$
Profit % $= \frac{P r o f i t}{C o s t P r i c e} \times 100 = \frac{1.5}{7.5} \times 100 = 20$ %