Nikita bought 30 kg of wheat at the rate of Rs. 9.50 per kg and 40 kg of wheat at the rate of Rs. 8.50 per kg and mixed them. She sold the mixture at the rate of Rs. 8.90 per kg. Her total profit or loss in the transaction was -

Answer: Option A

According to the question,
Cost price of the mixture
= 30 × 9.50 + 40 × 8.50
= 285 + 340
= Rs. 625
Selling price of the mixture
= 8.90 × 70
= Rs. 623
Loss = Cost price - Selling price
Loss = 625 - 623 = Rs. 2