the maximum speed of a train is 90km/hr. it takes 10 hours to cover a distance of 400 km. find the ratio of its maximum speed to its average speed.

Asked by  | 1st Sep, 2012, 08:51: PM

Expert Answer:

the average speed of the train will be the ratio of total distance covered to the total distance travelled.
so it will be: average speed: 400/10 = 40 kmph
maximum speed: 90 kmph
thus the ratio is: 90/40 = 9:4

Answered by  | 3rd Sep, 2012, 01:21: PM

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