Can any1 tell me how to calculate average speed. , i hv an exam tomorrow

Average speed = Total distance / elapsed time

Well, even though you waited till so late to start, I think you can do it. -- Take the distance traveled during some period of time. -- Divide that by the length of the period of time. -- Don't forget to keep the units with both numbers. -- The quotient you get by dividing IS the average speed during that time.

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