Here's a "Brain Teaser" for you!
Friday, December 17, 2010 at 9:29PM You are going to drive a race car two laps on a one-mile-long oval racetrack. At the end of the first lap, you have averaged 60 mph. How fast do you need to average on the second lap in order to average 120 mph for both laps?
Reader Comments (2)
You would need to average 180 MPH on the 2nd lap in order to average 120 MPH for both laps.
If 60 MPH is equal to 1 mile per minute you would have to travel at 120 miles per hr over the two laps which means you would have to cover 2 miles in one minute but since you have already used up 1 minute on the first lap you don't have anymore time-- The answer is it can't be done.