Question

The average of runs scored by a player in $10$ innings is $50$. How many runs should be score in the ${11}^{th}$ innings so that his average is increased by $2$ runs?

• A. $80runs$
• B. $72runs$
• C. $60runs$
• D. $54runs$

Answer 1

Answer: (B)

$72runs$

Let the number of runs scored in ${11}^{th}$ innings should be $x$
According to the question,
$\therefore 10\times 50+x=11\times 52$
$\Rightarrow 500+x=572-500$
$\therefore x=72runs$
Hence, the runs scored in ${11}^{th}$ innings should be $72$.