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4.Average
medium
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