A man starts his journey at 8 am at point "A" which is 40m km away from point "C". From 8 am
to 8:20 am, he travels with certain speed and rests about another 20 minutes at "8" then, he travelled with a certain speed for 20 minutes and completed the journey at 9:00a.m. Find the average speed of the man for his whole journey.
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The average speed of the man is 40 km/hr.
Given,
A man starts his journey at 8 am, and travels from point A to C. He reaches point C at 9 am.
Distance between points A and C = 40 km.
To Find,
The average speed of the man.
Solution,
The formula for calculating the average speed is
Average speed = Total Distance/Total time taken
In this case
Total distance = Distance between point A and C = 40 km
Total time taken = 1 hr, as the man starts the journey at 8 am and finishes it at 9 am.
So,
Average speed = 40/1 = 40 km/hr.
Hence, the average speed of the man is 40 km/hr.
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