A bus travels 200km at a speed of 100km/h and return with a speed of 50km/h calculate the average speed for the whole journery.
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Explanation:
Time taken in travel 200 km when speed was 100 km/h = 2hr.
Time taken in travel 200 km when speed was 50 km/h = 4 hr.
total time taken = 6 hr.
total distance = 400 km ( 200 +200)
Average speed = total distance /total time
= 400/6 = 200 /3 km/h
Answered by
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Answer:
Time taken in travel 200 km when speed was 100 km/h = 2hr.
Time taken in travel 200 km when speed was 50 km/h = 4 hr.
total time taken = 6 hr.
total distance = 400 km ( 200 +200)
Average speed = total distance /total time
= 400/6 = 200 /3 km/h
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