makersquare/ruby-course — pull request #28 by ulbanata (2014-02-17 03:31:02+00:00)
Title: Patrick Brennan Taxi Project

Only one major change- Time has to have been started before time can be stopped:
meters.stop => nil if meters.start has not been ran.

Other than that, I don't believe I changed anything. The code does reflect the immediate $2.50 once the time has been started even if no distance has been travelled.