The ratio of the present ages of Mohan and Gopal is 7:9. Nine years ago, the ratio of their ages was 2:3. Find their present ages.
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Answer:
presentages of mohan and Gopal=7:9
ie, 7xand 9x
9 years ago,7x-9 and 9x-9
then ratio 2:3
7x-9/9x-9=2/3
21x-27=18x-I8
21x-18x=-18+27
3x = 9
x = 9/3=2
Presentage of mohan7x=7x2=14yrs
Present age of Gopal 9x=9x2=18yrs
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