OMG--that's hilarious! :bwahaha:
Imagine what would have happened if he had asked the question, "If someone goes once around a racetrack at 80 miles per hour, how fast would he have to go on the second lap to have an overall average speed of 160 miles per hour?" Her head might have exploded!!!!
:bwahaha::banana::bwahaha::banana::bwahaha:
Bill
p.s. The answer is--it can't be done. Let's say the race track is 80 miles long. (The length doesn't matter, it can be any length, but it's easiest to illustrate the answer with that length.) To average 80 miles per hour over 80 miles, the first lap would take you (Come on, Chelsea, you can do it!) one hour. To overage 160 miles per hour over 2 laps (160 miles), the entire two laps would need to take (Come on, Chelsea, you can do it again!) one hour. If you spent an hour completing the first lap, you have zero time remaining to complete the second lap.