The following question is based on Blood Relations
The ratio of the ages of the father and the son at present is 5: 1 After 10 years the ratio will become 3:1 What is the sum of the present ages of the father and the son.
(A)30 (B)32 (C)60 (D)None of these
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Let son's age be x years.
Father's age=5x years.
After 10 years ,
Son's age= x+10 years
Father's age= 5x+10 years
5x+10/x+10=3
5x+10=3x+30
2x=20
x=10 years
Son's present age=10 years
Father' present age=50 years
Sum of their ages=50+10=60 years.
Therefore ANS=(c)60
adin:
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