Question 35

Afather’s age is 3 timesofhis son’s age at present. 10 years back, the father’s age was 5 timesofhis son’s age. Whatis the age of the son at present ?

Solution

Let F and S be the present ages of the father and son respectively.
F = 3*S
F - 10 = 5*(S - 10)
3S - 10 = 5S - 50
2S = 40
S = 20 years

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