Question 997453
When george was 12 his father was 3 times his age. Now his father his only twice his age. How old are they now. 

Please show working out 
<pre>When George was 12, his father was thrice his age, or his father was 36
Their age difference, which will never change is: 36 - 12, or 24
With George's age being G, and his father's, F, we get: F - G = 24 ------ eq (i)
Currently, father is twice George's age, so we can say that: F = 2G ----- eq (ii)
2G - G = 24 -------- Substituting 2G for F in eq (i)
G, or George is: {{{highlight_green(24)}}} years-old
Father is: 2(24), or {{{highlight_green(48)}}} years-old