What Is the Average Speed of a Cyclist's Round Trip?

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To calculate the average speed of a cyclist's round trip, the total distance traveled must be divided by the total time taken. For example, if the cyclist travels a distance of 12 meters to work at 3 meters per second, the time taken is 4 seconds. The return trip at 9 meters per second for the same distance takes 1.33 seconds. The total distance is 24 meters, and the total time is 5.33 seconds, resulting in an average speed of approximately 4.5 meters per second. Understanding that average speed is not simply the mean of the two speeds is crucial for solving such problems.
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physics PLEASE HELP :(

please help me i really don't know how to do this question for physics :confused: :confused: :confused: :eek:

A cyclist travels to work at an average speed of 3 metres/sec and returns at an average speed of 9 metres/sec what is the average speed of the entire journey??

the answer is not 6 and it is not as simple as speed= distance/time please help :frown:
 
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The average speed is found by dividing the total distance by the total time of travel. (Since you aren't given the distance, just make one up.)
 

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