Asked by Anonymous

A car travels in a northward direction for a total distance of 512 km. The car completes this trip in 6 hrs. After resting the driver makes the return trip, the return trip only takes 5.5 hours. What is the average speed of the car over the entire trip?
Answered by Ms. Sue
1024/11.5 = ______ mph

You forgot to include the times he was stopped by the police for greatly exceeding the speed limit.

Answered by DrBob222
That's 1024 km/11.5 = ? km/hr which works out to be about 55 mph. No speeding ticket today. :-)
Answered by Ms. Sue
Thanks, DrBob!

I goofed and didn't read carefully.

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