a bus travels a distance of 120 km with a speed of 40km/h and returns with a speed of 30 km /h. calculate the average speed for the entire journey
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Answered by
12
In first case:
S1 = 120Km
V1 = 40Km/h
T1 = 120/40 = 3hr.
In second case:
S2 = 120km
V2 = 30km/h
T2 = 120/30 = 4hr
total time taken= 3+4=7hr
Total distance covered = 120+120 = 240km
Average speed = Total distance covered/Total time taken = 240/7=34.28Km/hr.
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3
Answer:
i hope this helps
Explanation:
T1 = 120/40 = 3hr. Average speed = Total distance covered/Total time taken = 240/7=34.28Km/hr.
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