Problema Solution

A father and his son have a combined age of 145.

When the father was his son's current age he was twice as old as his son.

How old are the father and son?

Answer provided by our tutors

The son's original age was an odd number, the father's age at that time was an even number.  If the father was 50 and the son was 25, then they lived 70 years:

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70

An incredible number of father/son age combinations will always produce some even-number years have since passed.  So there is no definite answer.  One could state the father was 74 and the son was 37 [an odd number], then:

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34

they would both live 34 years beyond that earlier point in time.