Question

If the age of $B$ is half the present age of $A$ and sum of the present ages of $A$ and $B$ is $42$ years; find the present ages of $A$ and $B$.

• A. Present ages of $A$ and $B$ are $30$ years and $20$ years respectively.
• B. Present ages of $A$ and $B$ are $42$ years and $28$ years respectively.
• C. Present ages of $A$ and $B$ are $26$ years and $20$ years respectively.
• D. Present ages of $A$ and $B$ are $24$ years and $18$ years respectively.

Answer 1

The correct option is D Present ages of $A$ and $B$ are $24$ years and $18$ years respectively.

Since the sum of present ages of $A$ and $B$ is $42$.

Hence (D) is correct answer, since the sum of present ages given in only $D$ option is $42$.