Social Sciences, asked by AnoopJaiteley310, 1 year ago

The following question is based on Blood Relations

The ratio of the ages of the father and son at present is 7: 1 After 7 years the ratio will become 5: 1 What is the sum of the present ages of the father and the son.
(A)112 (B)98 (C)100 (D)None of these

Answers

Answered by kvnmurty
0
     Father = 7 * son

after 7 years,
   (Father + 7 years ) = 5 * (Son + 7 years)
   Father + 7 years = 5 * Son + 35 years

   7 * Son +  7 years = 5 * Son + 35 years
   2 * Son = 28 years

   Age of Son =  14 years

   Father's age = 7 * 14 = 98 years.

Hence,  the sum of their ages = 112 years


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