Question

A boy buy 20 kg of rice at 7.25 per kg and 45kg of rice at 8 per kg. At what rate per kg should he sell the mixture to gain 6 %on the whole?​

Answer 1

Answer:

Amount spent in buying 20kg of rice20×Rs.36=Rs.720

Amount spent in buying 25kg of rice 25×Rs.32=Rs.800

Total amount spent CP=Rs.(720+800)=Rs.1520.

Total quantity of rice=(20+25)kg=45kg

SP=45×Rs.38=1710

Profit%=

1500

1710−1500

×100=12.5%

Gain=12.5%.