Arithmetic Aptitude - Problems On Age - Discussion

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Q.

The ages of two persons differ by 20 years. If 5 years ago, the elder one be 5 times as old as the younger one, their present ages (in years) are respectively ?                          [N.D.A 1994]
A. 30,10 B. 29,9
C. 25,5 D. 50,30

Answer: Option A
Explaination:

 


Let their ages be x and (x + 20) years.


5 (x - 5) = (x + 20 - 5) or 4x = 40 or x = 10.

Their present ages are 30 years and 10 years.


Discussion

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