The ratio of the present ages of Mohan and Gopal is t:9. Nine years ago, the ratio of their ages was 2:3. Find their present ages.
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after 9 year
t+9/9+9=2/3
3t+27=36
3t=9
t=3
present age = 3:9
t+9/9+9=2/3
3t+27=36
3t=9
t=3
present age = 3:9
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