The sum of 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 5years
C 8years
D 10years

Correct Answer: 4 years

Let, The age of the youngest child = x year The age of the 2nd children = ( x + 3) year The age of the 3rd children = ( x + 3 + 3) year Tne age of the 4th children = ( x + 6 + 3) year The age of the 5th children = ( x + 9 + 3) year According to question, x + x + 3 + x + 6 + x + 9 + x + 12 = 50 5x + 30 = 50 5x = 50 - 30 5x = 20 x = 4 So, the age of the youngest child is 4 years.
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