Explanation
Let the younger brother's present age = x years
Then older brother's present age = x + 9 years
After 5 years:
Younger brother's age = x + 5
Older brother's age = x + 9 + 5 = x + 14
Sum after 5 years = 49
So, (x + 5) + (x + 14) = 49
2x + 19 = 49
2x = 49 - 19
2x = 30
x = 15
Younger brother = 15 years
Older brother = x + 9 = 15 + 9 = 24 years
Last verified on 04-09-2026