Discussion
A 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. His profit percent is:
Answer: B
Cost Price of \(56 kg\) rice \(= Rs. (26 \times 20 + 30 \times 36) = Rs. (520 + 1080) = Rs. 1600.\)
Selling Price of \(56kg\) rice \(= Rs. (56 \times 30) = Rs. 1680.\)
\(\therefore\) Gain \(= (\frac{80}{1600} \times 100)\) % \(= 5\) %.
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