Question

present ages of Anu and Raj are 4 ratio 5. 5 years from now their ratio will be 5 ratio 6 find the ages

Answer 1

let the ages be 4x and 5x

After 5 years
4x+5/5x+5=5/6
6(4x+5)=5(5x+5)
24x+30=25x+25
Then transpose
25x-24x=30-25
x=5
so Anu's age=4*5=20
Raj's age=5*5=25

Answer 2

Present ages of Anu and Raj are 4 ratio 5.
Let the ages be 4x and 5x.
After 5 years
Anu age will be= 4x+5
Raj age will be = 5x+5
A/q
4x+5÷5x+5=5÷6
6 (4x+5) = 5 (5x+5)
24x + 30 = 25x + 25
24x-25x = 25-30
-x = -5
x = 5
4x = 4×5 = 20
5x= 5×5 =25