Discussion

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

Answer: A

Let the ages of children be \(x, (x + 3), (x + 6), (x + 9)\) and \((x+12)\) years

Then \(x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50\)

\(\Rightarrow \) \(5x=20\)

\(\Rightarrow\) \(x=4\)

\(\therefore \) Age of the youngest child \(=x=4\) years

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