. In a journey of 1000 km a train covers the first 600 km at 60 km/h and the
remaining distance at 40 km/h. Calculate the average speed of the train during
the whole journey.
Answers
Answered by
0
Answer:
100km/h in whole journey
Answered by
2
Answer:
the train covers the second 400 kilometers at 40 kilometers per hour.
rate * time = distance.
for the first 600 kilometers, the formula becomes 60 * time = 600
solve for time to get time = 600 / 60 = 10 hours.
for the last 400 kilometers, the formula becomes 40 * time = 400.
solve for time to get time = 400 / 40 = 10 hours.
the total time for the 1000 kilometers is 10 + 10 = 20 hours.
rate * time = distance becomes rate * 20 = 1000.
solve for rate to get rate = 1000 / 20 = 50 kilometers per hour.
hope it's correct and helpful for you
the average speed of the train for the whole journey is 50 kilometers per hour.
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