Question

a train runs for 3 hours at speed of 75km per hour and for next 2hour at a speed of 80km per hour. find the average speed of the train for the 5 hour journey ​

Answer 1

Answer:

3hr -> 75 km

2hr -> 80 km

avg. speed = total distance/ total time

then

speed = (75+80)/(3+2)

speed = 155/5

speed = 31 km/hr

Answer 2

Answer:

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