Question 1095796: Fred is 25 years older than his son. When Fred was the age that his son is now, he was twice as old as his son Answer by ikleyn(52800) (Show Source):
Let F be the Fred's age,
Then his son's present age is (F-25).
When Fred was at his son's age ? - 25 years ago.
At that time Fred was (F-25) years and his son was ((F-25)-25 = (F-50) years old.
The condition says
F- 25 = 2*(F-50). ====>
F = 75.
Answer. Fred is 75 years old now. His son is 50 years old.
