### The average age of husband and his wife was 23 years at the time of their marriage. After five tears they have a one-year old child. The average age of the family of three, when the child was born, was.

**A.** 23 years

**B.** 24 years

**C.** 18 years

**D.** 20 years

## Show Answer

###
Answer-C

Solution-

Solution(By Apex Team)

$\begin{array}{l}\text{According to the question,}\\
\begin{array}{l}
\frac{H+W}{2}=23 \text { years } \\
\mathrm{H}+\mathrm{W}=46 \text { years…..(i) }
\end{array}\end{array}$
As given in the question after five years they have a one-year old child.
i.e., After 4 years of marriage child was born
$\begin{array}{l}\text{∴ Average of (H + E + C)}\\
\begin{array}{l}
=\Large\frac{46+8}{3}\\
=\Large\frac{54}{3}\\
=18 \text { years }
\end{array}\end{array}$