# Aptitude | Arithmetic Aptitude 2 | Question 7

Sum of 4 childeren born at interval of 4 years 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