Arithmetic Aptitudes › Problems on Ages › Question #4425
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QWhat is Rahul's present age if he is 15 years older than Rohan and 5 years ago, he was 3 times as old as Rohan?

ID: #4425 Problems on Ages 419 views
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#4425Q ID
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  • A 32.5 years ✔ ✖
  • B 27.5 years ✔ ✖
  • C 25 years ✔ ✖
  • D 24.9 years ✔ ✖
Correct Answer: Option B

Explanation

If the age of Rohan is represented by y,
 and Rahul is 15 years older than Rohan, meaning his age is y+15,
 then Rahul's age 5 years ago was y+15-5. Rohan's age 5 years ago was y-5.

 If we are given that 5 years ago, Rahul was 3 times as old as Rohan, 
we can set up the equation (y+15-5)=3(y-5). 

Solving this equation gives us y+10=3y-15, or 2y=25,
 which means Rohan is 12.5 years old. This means that Rahul is 27.5 years old.

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