the age of hari and harry are in the ratio 5:7. four years from now the ratio of their ages will be 3:4. find their present ages
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32
Let the age of Hari be 5X, and Harry be 7X,
4 years from now there ages will be,
5X+4, 7X + 4 respectively,
Given that,
(5X + 4)/ (7X+4) = 3/4
Cross multiply,
=> 20X + 16 = 21X + 12
=> 4 = X,
Therefore Hari age = 5X = 20,
Harry age = 7X = 28
4 years from now there ages will be,
5X+4, 7X + 4 respectively,
Given that,
(5X + 4)/ (7X+4) = 3/4
Cross multiply,
=> 20X + 16 = 21X + 12
=> 4 = X,
Therefore Hari age = 5X = 20,
Harry age = 7X = 28
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