A batsman in his 12th innings makes a score of 63 runs and there by increases his average score by 2. What is his average after the 12th innings ?

A. 13 B. 39 C. 41 D. 87 Answer: Option C

Solution(By Apex Team)

Let the average score till his 11 innings = x According to the question, \begin{aligned}\Rightarrow&\frac{11x+63}{12}=x+2\\ \Rightarrow&11x+63=12x+24\\ \Rightarrow &x=39\end{aligned} 12th innings average = 39 + 2 = 41

A. 20
B. 21
C. 28
D. 32

A. 18
B. 20
C. 24
D. 30

A. 10 years
B. 10.5 years
C. 11 years
D. 12 years