Average of runs of a cricket player of 10 innings was 32 . How many runs must he score in his next i

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The average of runs of a cricket player of $10$ innings was $32 .$ How many runs must he score in his next innings so as to increase his average of runs by $4 ?$

A

$76$

B

$70$

C

$4$

D

$2$

Solution

Let the run scored in $11^{th}$ innings $=x$

According to the question

$10 \times 32+x=11 \times(32+4)$

$320+x=36 \times 11 \Rightarrow x=396-320=76$

Standard 13

Quantitative Aptitude

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