Ten years ago the age of the father was four times of his son. Ten years hence the age of the father will be twice that of his son. The present ages of father & son are?

Answer 1

Does "hence" mean from "10 years ago"?

F = 2S

F-10 = 4(S-10)

Substitute 2S for F in the second equation and solve for S. Insert that value into the first equation to solve for F. Check by putting both values into the second equation.

Answer 2

thank you for helping God bless you