What's the average of 5 MPG and 10 MPG?
The math isn't quite obvious to me, but if you go out camping and get 5 MPG on the way to the campground and turn around and get 10 MGP on the way back, your average MPG won't be 7.5 as you would expe...
Forum Discussion
Old-Biscuit wrote:
50 miles one way
5 mpg going....used 10 gallons
10 mpg coming back......used 5 gallons
15 gallons used.....100 miles traveled------6.67 mpg round trip
Where/how do you come up with 7.5 mpg??
Your math & thought process is flawed
he left out the total miles driven in the OP and was simply adding 10+15 and then dividing by 2. 7.5 would be the correct answer if he was simply finding the average of the two numbers but that's not how one determines MPG.
