If 5 Years Ago, the Age of Rajesh be 5 Times as Old as the Raghu :

The age of Rajesh differ by 20 year with Raghu. If 5 years ago, the age of Rajesh be 5 times as old as the Raghu, then their present ages in years as;

  1. 20,4
  2. 25,5
  3. 30, 10
  4. 35, 15
Anurag Mishra Professor Asked on 24th November 2015 in Maths.
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1 Answer(s)

Answer is (3) 30, 10 

Explanation:-
Lat the age of Raghu be X years 5 years ago.
Then, the age of Rajesh 5 years ago = 5 X years

Therefore, the present age Rajesh = (X + 5) years and the age of Raghu = 5 X + 5) years
The difference of their ages = 20 years

Then,  (5 X + 5) – (X + 5) = 20 
 5 X + 5 – X – 5 = 20 
4 X = 20 
 X = 20/4
X = 5 years

Then, the present age of Rajesh = X + 5 = 5 + 5 
 = 10 years
And, the present age of Raghu = 5 X + 5 = 5 x 5 +  5
 = 25 + 5 
 = 30 years

Then, the present age of Rajesh is 10 years and the present age of Raghu is 30 years.

Hence, the answer is (3) 30 , 10 years.

Monis Rasool Professor Answered on 24th November 2015.
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