Average weight of 6 persons is increased by 5, kg when one of them who weighs 40, kg is replaced by

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The average weight of $6$ persons is increased by $5\, kg$ when one of them who weighs $40\, kg$ is replaced by a new man. The weight of new man is (in $kg$)

A

$76$

B

$74$

C

$72$

D

$70$

Solution

Weight of new man = Weight of replaced man + Increase in average $\times$ Number of persons

$=40+5 \times 6$

$=40+30=70 \,kg$

Standard 13

Quantitative Aptitude

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