a man goes 50km at a speed of 40km/hr and return back to same place at as speed of 30km/hr .find average speed for whole journey
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a man goes 50km at a speed of 40km/hr and return back to same place at as speed of 30km/hr .find average speed for whole journey
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Answer:
car travels a certain distance at a speed of 50 km/h and returns with a speed of 40 km/hr. Calculate the average speed of the whole journey.
Top answer · 20 votes
To complete 1km distance with speed = 50km hr it tkes time t1 = 150s To complete 1km distance with speed = 40km hr it tkes time t1 = 140s Average speed ... More
Answer:
Hey mate
Explanation:
Ur answer:
50+40+30/3
120/3
40kph
Hence average speed is 40kmph
Hope it helps
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