1.  A trader mixes 26 kg of rice at ₹ 20 per kg with 30 kg of rice of other variety at ₹ 36 per kg and sells the mixture at ₹ 30 per kg. His profit percent is:
A. No profit, no loss
B. 5%
C. 8%
D. 10%
E. None of these

Answer: Option B

Explanation:

C.P. of 56 kg rice = ₹ (26 x 20 + 30 x 36)

= ₹ (520 + 1080) = ₹ 1600

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

Gain = 80 x 100 % = 5%.
1600