Search found 1 match
In problems that ask you to calculate total average speed, given the speed for onward and return trip, you could apply a formula or a neat trick to get to the answer faster. Lets derive the genral formula first and see how it applies it to couple of examples. Say, a car travels at S1 mph on a trip ...
- by dhruv pillai
Tue Jun 29, 2010 8:29 am- Forum: GMAT Math
- Topic: Two methods to calculate total average speed
- Replies: 19
- Views: 732630