The sum of the ages of 3 children born a...

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

4 yr

8 yr

10 yr

None of these

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Verified by Experts

The correct Answer is:

Let the ages of the children be `x (x + 3),(x + 6), (x + 9) and (x + 12)yr,` respectively. Then, `x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50 `
`implies 5x + 30 = 50`
`implies 5x = 20 implies 4 yr `

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