Aptitude | Arithmetic Aptitude 2 | Question 7

Sum of 4 childeren born at interval of 4 years is is 36. What is the age of youngest child?

(A) 2 years
(B) 3 years
(C) 4 years
(D) 5 years


Answer: (B)

Explanation:

Let the ages of children be x, (x+4), 
(x+8) and (x+12) years.

Then x + x + 4 + x + 8 + x +12 = 36
                       4x + 24 = 36
                             4x = 12
                              x = 3
Age of the youngest child = x = 3 years


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