Question

Ajit is $21$ years younger than his father. What is their total age in $7$ years time?

• A. $(x+28)$ years
• B. $(x+35)$ years
• C. $(2x+28)$ years
• D. $(2x+35)$ years

Answer 1

The correct option is D $(2x+35)$ years

Let the age of Ajit be $x$ years.

$\therefore$ Age of Ajit's father $=x+21$

After $7$ years-

Age of Ajit $=(x+7)$ years

Age of Ajit's father $=x+21+7=x+28$

Total age of Ajit and Ajit' father $=x+7+x+28=(2x+35)$ years