Average age of mother, father and son was 42, years. at time of marriage of son. After one year an i

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The average age of mother, father and son was $42\, years.$ at the time of the marriage of the son. After one year an infant was born in the family and after $6\, years$ of marriage the average age of the family is $36\, years.$ What was the age of the bride at the time of marriage in $year.$

A

$25$

B

$23$

C

$22$

D

$24$

Solution

Present age of Husband and wife $=25 \times 2+7 \times 2=64$ years

Present age of Husband wife and child $=22 \times 3=66$ years

Age of a child is $=66-64=2$ years.

Standard 13

Quantitative Aptitude

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