Question

The sum of the ages of 5 children born at intervals of 3 years each is 50 years What is the age of the youngest child?

• A. 4 years
• B. 8 years
• C. 10 years
• D. 6 years

Answer 1

Answer: (A)

4 years

Let the age of the youngest child be $x$ years
Then $x+(x+3)+(x+6)+(x+9)+(x+12)=50$
$\Rightarrow 5x+30=50\Rightarrow 5x=20\Rightarrow x=4$
$\therefore$ Age of the youngest child is $4$ years.