[Black_Shark]

Think of it in terms of “time” and not “speed” and it will make sense.

It is fundamentally a time, not speed, problem. Took me a min or two to wrap my head around it which is why I am not a physicist but rather an economist.

I despise Physics. Makes my head hurt. ;)

[UCANSEE2]

Think of it in terms of “time” and not “speed” and it will make sense.

But the question is about speed, and not time. Time is not in any of the givens. Time is a factor in determining MPH, but so is DISTANCE.

The issue is how you get AVERAGE MPH, not AVERAGE TIME.

Look at it this way:

IF I go 15mph for 1 mile, and 45mph for 1 mile, what is my average speed (mph) for a 2 mile course?