In the first 10 overs of a cricket game, the run rate was only 2.1. What should be the rate in the remaining 30 overs to reach the target of 282 runs?  Select:
A) 6.25 B) 8.28 C) 6.11 D) 8.7 E) 8.11

Rationale: "required run rate = [ 282 - ( 2.1 * 10 ) ] / 30 = 261 / 30 = 8.70 answer : d"
Answer: D