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Dhanush is now two fifth of his older brother's age and two years from now he will be half of his older brother's.......

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Dhanush is now two fifth of his older brother's age and two years from now he will be half of his older brother's age.
Two years ago, Dhanush was only one-fourth the age of his older brother age at that time.

How old is Dhanush now ?

posted Feb 26, 2018 by Rahul Vaidya

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1 Answer

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2 years ago ==> Dhanush : Brother = 1 : 4
Present time ==> Dhanush : Brother = 2 : 5
2 years later ==> Dhanush : Brother = 1 : 2
1 : 4 ==> x : 4x
2 : 5 ==> 2y : 5y
1 : 2 ==> z : 2z
2y - x = 2 -----1
5y - 4x = 2 -----2
4×(1) - 2
8y - 4x - 5y + 4x = 8 - 2 = 6
3y = 6
y = 2
Since Dhanush = 2y => 2×2 = 4 years old.

answer Feb 27, 2018 by Tejas Naik



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