A shopkeeper bought 15 kg of rice at the rate of Rs. 29 per kg and 25 kg of rice at the rate of Rs. 20 per kg. He sold the mixture of both types of rice at the rate of Rs. 27 per kg. His profit in this transaction is -

Answer: Option D

According to the question,
Cost price of the mixture
= 15 × 29 + 25 × 20
= Rs. 935
Selling price of the mixture
= 27 × 40
= Rs. 1080

Profit = Selling price - Cost price
Profit = 1080 - 935 = Rs. 145