Question

The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age og the youngest child ?
A) 8 yrs
B) 16 yrs
C) 6 yrs
D) 4 yrs

Answer 1

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Let the age of youngest child is x years
Second child age is (x + 3) years
Third Child age is (x + 6) years
Fourth child age is (x + 9 )years
Fifth child age is (x + 12) years

ATQ
$x + x + 3 + x + 6 + x + 9 + x + 12 = 50 \\ 5x + 30 = 50 \\ 5x = 50 - 30 \\ 5x = 20 \\ x = \frac{20}{5} \\ x = 4$
So The age of youngest Child is 4 years

Option D is your answer

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