Question

the ages of Sonu and monu are in the ratio 7:5. Ten years from now the ratio of their ages will be 9:7. Find their present ages.

Answer 1

Let the present age of Sonu be 7a
Present age of monu = 5a

Ten years from now,
Sonu's age = 7a + 10
Monu's age = 5a + 10


According to question
(7a+10) / (5a+10) = 9/7
=> 49a + 70 = 45a +90
=> 4a = 20
=> a = 5

Present age of Sonu = 35 years
Present age of monu = 25 years