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The sum of the present ages of a father and his son is 60 years. Five years ago the father's age was four times the son's age. What is the…

1015Medium DSSSB TGT Computer Science 0 replies 1 views

The sum of the present ages of a father and his son is 60 years. Five years ago the father's age was four times the son's age. What is the father's present age?

A40 years
B45 years
C48 years
D50 years

Correct answer: B

Explanation

With F + S = 60 and F − 5 = 4(S − 5) we get 5S = 75, so S = 15 and F = 45.

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