The average speed of the man is 56 kilometers per hour
How to determine the average speed?
We have:
Distance = 42 km
Time = 45 minutes
Start by converting the time to hour
Time = 45/60 hour
Time = 0.75 hour
The speed is then calculated as:
Speed = Distance/Time
This gives
Speed = 42/0.75
Evaluate
Speed = 56
Hence, the average speed of the man is 56 kilometers per hour
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