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4.Average
medium
The average of a batsman after $25$ innings was $56$ runs per innings. If after the $26^{\text {th }}$ inning his average increased by $2$ runs, then find his score in the $26^{\text {th }}$ inning?
A
$100$
B
$102$
C
$108$
D
$98$
Solution
Let his score in $26^{th}$ inning $=x$
According to the question
$25 \times 56+x=26(56+2)$
$x=1308-1400 \Rightarrow x=108$
Std 13
Quantitative Aptitude