Aptitude | Arithmetic Aptitude 2 | Question 8

A is 5 years older than B who is thrice as old as C. If the total of ages of A, B and C is 40, then how old is C ?

**(A)** 6

**(B)** 7

**(C)** 5

**(D)** 8

**Answer:** **(C)** **Explanation:**

Let C’s age be x years then B’s age be 3x years and A’s age be (3x+5) years Therefore x + 3x + (3x + 5) = 40 7x + 5 = 40 7x = 35 x = 5