Question

A train covers 108 km in first two hours, 36 km in next half an hour and 90
km in next two hours. Find the average speed of the train during the whole
journey

Answer 1

Answer:

Total distance=108+36+90=234km

Total time=2h+0.5h+1.5h=4h

Average speed = total distance/total time

=234/4

=58.5km/h

So, 58.5km/h is ur answer.

Plz mark as brainliest:-) :-)

Answer 2

Answer:

The average speed of the train during the whole  journey is 52 km/hr.

Step-by-step explanation:

We are given that a train covers 108 km in first two hours, 36 km in next half an hour and 90  km in next two hours.

So, Total distance covered by train = (108 + 36 + 90) km = 234 km

Total time taken by the train = (2 + 0.5 + 2) hr = 4.5 hour

Therefore, Speed of train = (Total distance) ÷ (Total time)

                                           = 234 ÷ 4.5 = 52 km/hr.

Hence, the average speed of the train during the whole  journey is 52 km/hr.