Average age of four members of a family is 32, years. If age of a guest is included, then average ag

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The average age of four members of a family is $32\, years.$ If the age of a guest is included, then the average age increased by $12.5 \% .$ What is the age (in $years$) of the guest ?

A

$52$

B

$56$

C

$44$

D

$12$

Solution

Age of Guest $=\frac{4 \times 32+G}{5}=36$

$128+G=180$

$G=52$

Standard 13

Quantitative Aptitude

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