A cricketer had a certain average of runs for his 64 innings. In his 65th innings, he is bowled out for no score on his part. This brings down his average by 2 runs. His new average of runs is :

A. 130

B. 128

C. 70

D. 68

Let the average of runs for his 64 innings = x ∴ According to the question, $\begin{array}{l}\frac{64x+0}{65}=x-2\\ 64x=65x-130\\ x=130\\ \text{∴ His new average is }\\ =130-2\\ =128\end{array}$