Question

The ratio in the ages of Vimal and Rumi is 3 : 5 and the sum of their ages is 80 years. What will be the ratio in their ages after 10 years ?

Answer 1

ratio is 3:5
let age of vimal be 3x years
then age of rumi = 5x years.
3x+5x = 80
8x = 80
x = 10
age of vimal = 30 years
age of Rumi = 50 years
after 10 years ration will be = 40: 60 = 2:3