Question

Trader mixes 26 kg of rice at rs. 20 per kg with 30 kg of rice of other variety at rs. 36 per kg and sells the mixture at rs. 30 per kg. what is his profit percentage?

Answer 1

Let, total cost of 20rs per kg rice = 520 Rs
,total cost of 36rs per kg rice = 1080 Rs
So, the sum of both will be 1600 Rs
We know that,
If he will sell the total rice(i.e. 56 kg) at 30 Rs per kg so the amount will be 1680
hence, the difference will be 80 Rs
therefore, his profit percentage will be 5%

Answer 2

C.P. of 56 kg rice = Rs. (26 x 20 + 30 x 36) = Rs. (520 + 1080) = Rs. 1600

S.P. of 56 kg rice = Rs. (56 x 30) = Rs. 1680.

Gain = (80/1600 × 100) % = 5%