Harkamal purchased 3 kg of grapes at the rate of 70 per kg and 9 kg of mangoes at the rate of 55 per kg. How much amount did he pay to the shopkeeper?  Pick:
A) 700
B) 1065
C) 1070
D) 1075
E) 1080

Rationale: "cost of 3 kg grapes = 70 × 3 = 210 . cost of 9 kg of mangoes = 55 × 9 = 490 . total cost he has to pay = 210 + 490 = 700 a"
Answer: A