Hari bought $20 k g$ of rice at $R s . 36 p e r k g$ and $25 k g$ of rice at $R s . 32 p e r k g$ . He mixed the two verities and sold the mixture at $R s . 38 p e r k g$ . Find his gain per cent in the whole transition.

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Solution

Amount spent in buying $20 k g$ of rice $20 \times R s .36 = R s .720$
Amount spent in buying $25 k g$ of rice $25 \times R s .32 = R s .800$
Total amount spent $C P = R s . (720 + 800) = R s .1520$ .
Total quantity of rice $= (20 + 25) k g = 45 k g$
$S P = 45 \times R s .38 = 1710$
Profit $% = \frac{1710 - 1500}{1500} \times 100 = 12.5 %$
Gain $= 12.5 %$ .

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Hari bought 20 kg of rice at Rs.36 per kg and 25 kg of rice at Rs.32 per kg. He mixed the two verities and sold the mixture at Rs.38 per kg. Find his gain per cent in the whole transition.

Amount spent in buying 20kg of rice20×Rs.36=Rs.720Amount spent in buying 25kg of rice 25×Rs.32=Rs.800Total amount spent CP=Rs.(720+800)=Rs.1520.Total quantity of rice=(20+25)kg=45kgSP=45×Rs.38=1710Profit%=1710−15001500×100=12.5%Gain=12.5%.

Hari bought $20 k g$ of rice at $R s . 36 p e r k g$ and $25 k g$ of rice at $R s . 32 p e r k g$ . He mixed the two verities and sold the mixture at $R s . 38 p e r k g$ . Find his gain per cent in the whole transition.