Question

The age of a father is 4 time as old as his daughter if the sum of the of their ages is 60 years find their present ages.
solve it fast ​

Answer 1

Step-by-step explanation:

Let the father’s age now be F and that of the son S. Let us frame the relations:

F = 4S … (1)

F-10 = 10(S-10) … (2).

Put the value of F from (1) into (2) to get

4S - 10 = 10(S-10), or

4S - 10 = 10S - 100, or

6S = 90, or

S = 15 and F = 60.

Check: Ten years ago the Father was 50 years and the Son 5 years. The ratio of the Father’s age to the Son’s age then was 10.

The Father is 60 years now