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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
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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

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