I find the easiest way to do a problem is to write everything mathematically.Originally Posted byJudi

first, define your variables...

Next, write out what you know.

Right now Maria is 6 times as old as Tina, therefore...

In 20 years Maria will only be twice as old as Tina, therefore...

Now we solve both equations for

Now we combine the two equations...

multiply by 6

extend...

multiply by 3

subtract from both sides...

Voila!