Ramu's father is a four times as old as Ramu. If sum of their ages is 50 years. Find their ages

Answer 1

I don't know this answer

Answer 2

My answer is 10

Answer 3

Ramu's age --- x
father's age 4x

x + 4x = 50
5x = 50
x = 10

So Ramu is 10 and his father is 40