Present Age
Let Manoj Age be 4x
Krishna Age=5x
6 years from Now
Let Manoj Age be 4x+6
Krishna Age=5x+6
As per Question
Manoj Age after 5 years/Krishan Age after 5 years=5/6
(4x+6)/(5x+6)=5/6
Cross multiplying
(4x+6)6=(5x+6)5
24x+36=25x+30
36-30=25x-24x
6=x
manoj Age=4x=4*6=24
Krishna Age=5x=5*6=30