A certain fruit stand sold apples for $0.70 each and bananas for $0.60 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase?  Pick one:
A) 8	B) 9	C) 10	D) 11	E) 12

Rationale: "let ' s start with 1 apple for $ 0.70 . let ' s subtract $ 0.70 from $ 6.30 until we get a multiple of $ 0.60 . $ 6.30 , $ 5.60 , $ 4.90 , $ 4.20 = 7 * $ 0.60 the customer purchased 7 bananas and 3 apples . the answer is c ."
Answer: C