Rado the dog runs along a railroad. A train that is 250 meters long passes her in 24 seconds. The speed of the train is 25 meters per second. Find out the speed of the dog Rado at which he runs along the rail road.
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Answer:
14.583
Step-by-step explanation:
Train speed is 25 meter per second.
Train is 250m long.
It crosses the dog in 24 seconds.
It means it travelled 25*24- 600m and crossed the dog.
Train will cross the dog when dog is 250m behind the engine as at that distance it will be behind the train. That happened in 24 seconds when train covered 600m.
At that when train crossed dog was 350m behind the engine means it also travelled 350m in 24 second like train travelled 600m in 24 seconds.
With this speed only the dog can exactly behind the train or crossed by the train.
It means that dog travelled 350m in 24 second.
So speed - 350per 24second = 14.583 m per second.
Hope it helps
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