Question

a train covered a first 200 km of a journey in 6 hours their next 150 km in 5 hours and the last to 70 km in 4 hours calculate the average speed of the train for the entire journey

Answer 1

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Find total distance:

200 + 150 + 70 = 420 km

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Find total time:

6 + 5 + 4 = 15 hours

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Find average speed:

Speed = Distance ÷ Time

Speed = 420 ÷ 15 = 28 km/h

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Answer: The average speed of the train for the entire journey is 28 km/h.