Gujarati
Hindi
4.Average
easy

The average weight of $8$ sailors in a boat is increased by $1\, kg$ if one of them weighting $56\,kg$ is replaced by a new sailor. The weight of the new sailor is (in $kg$)

A

$57$

B

$60$

C

$64$

D

$62$

Solution

The sailor weighing $56 \,kg$ is replaced and the average is increased by $1 \,kg$. Hence, the weight of the newr sailor is $(56+$ increase in total weight) $=56+1 \times 8$ $=56+8=64 kg$

Standard 13
Quantitative Aptitude

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