manas is twice the age of Ajay but half the age of aman. Rahul is half the age of Ajay but twice the age of Tarun . Who is the eldest one?
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Answer:
age be x years.
So,Rahul's age=(x+4) years.
Given: x/(x+4)= 7/9
=>9x=7(x+4) =>9x=7x+28 =>2x=28 => x=14
Hence Sachin's age=14 years .Ans.
ALITER:—
Let ages of Sachin and Rahul be 7x and 9x years respectively.
Given: 9x-7x=4 => x=2.
Hence Sachin's age=7x=7×2=14 years.Ans.
(This way gives less cumbersome calculations!).
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Aman
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