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
toedtoes wrote:The reason I was expecting 7.5 was because the average of 5 and 10 is 7.5. But a quick calculation of the fuel consumption led me to 6.67. I think others might expect the same thing, that's why I'm pointing it out. I'll bet if you ask 100 people what the average of 5 MPG and 10 MPG is over the same number of miles, 95% would get it wrong.
Old Biscuit was questioning your "7.5 as you would expect". Why would you (or anyone) expect that?
