A motorcycle covers 50km with speed of 50 km/hr and the next 50 km covers with 75 km/hr. Find the average speed of the motorcycle.
55 km/hr
60 km/hr
65 km/hr
70 km/hr
Answers
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Answer:
55km/hr
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Answered by
0
Answer:60 km/h
Explanation:
Time to cover first 40 km is 40/20 = 2 hours .
Total time to cover total distance of 80 km is 80 /30 =
8/3 hours .
Time to cover second 40 km is 8/3 - 2 = 2/3 hours .
Second speed is 40 / ( 2/3) = 20 *3 = 60 km/h
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