Correct Answer: Option 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
=> 5x = 20
=> x = 4.
So, Age of the youngest child = x = 4 years.
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