Posted by Colin on Wednesday, September 12, 2012 at 8:56pm.
A toy train has 20 cars blue, purple and orange. There are 4 times as many blue cars as purple cars. There are 5 times as many orange cars as purple cars. How many of each color are there?

Math  Colin, Wednesday, September 12, 2012 at 9:50pm
We are having an issue trying to solve for purple...