Rohan's father is four times as old as Rohan. Five years ago, his father was
nine times as old as he was then. Find their present ages.
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Rohan's father is four times as old as Rohan. Five years ago, his father was
nine times as old as he was then. Find their present ages.
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Given : Rohan's father is four times as old as Rohan.
Five years ago, his father was nine times as old as he was then.
To Find : present ages of Rohan and Rohan father
Solution:
Rohan present age = R years
Rohan's father present age = 4R years
Five years ago Rohan present age = R-5 years
Five years ago Rohan's father present age = 4R-5 years
4R-5 = 9 ( R - 5)
=> 4R - 5 = 9R - 45
=> 5R = 40
=> R = 8
Rohan present age = 8 years
Rohan's father present age = 4*8 = 32 years
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