# Mufasa is 3 years older than Rafiki and Simba is twice as old as Mufasa. The sum of their ages is 57. How old is Mufasa?

Dec 10, 2016

Mufasa's age is $15$ years.

#### Explanation:

Let Rafiki's age is $R$

Then Mufasa's age is $M = R + 3$

And Simba's age is $S = 2 M = 2 \cdot \left(R + 3\right) = 2 R + 6$

The sum of their ages is R+M+S =57 or R+R+3+2R+6=57 or 4R =57-9 or 4R=48 or R=12 ; M=R+3=12+3=15

Mufasa's age is $M = R + 3 = 15$ years [Ans]