In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the rate in the remaining 40 overs to reach the target of 252 runs?  Choose the correct answer
A) 6.25 B) 6.22 C) 5.5 D) 6.39 E) 6.13

Rationale: "required run rate = [ 252 - ( 3.2 * 10 ) ] / 40 = 220 / 40 = 5.5 answer : c"
Answer: C