A carrier train, when it is 100 km away from the station, going at a constant speed of 70 kph towards the station. At this instant a fast bird from its engine flies towards the station at 100 kph net speed.When the bird gets to the station, it turns back and flies again towards the train, when it reaches engine, it again turns and heads towards the station. If bird keep son flying in such a manner, find the distance travelled by the bird before train reaches the station ? How many trips, it made in this duration between station and the train ?
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Answer:
100 Km
Explanation:
Two trains start from stations a and b speced 50kms apart at the same time and speed. As the train start, a bird flies from one train towards the other and on reaching the second train , it flies back to the first train. This is repented till the trains collide. If the speed of the trains is 25km/h and that of the bird is 100km/h.
The trains collide after 1 hour.
In 1 hour the bird flies 100km
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