Two trains starting at the same …
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Yogita Ingle 3 years, 6 months ago
Let the duration be x
Let Train A be the train that traveled at 30km/h
And Train B be the train that traveled 35 km/h
Express the distance traveled by train A in term of x
Distance = Speed x Time
Distance = 30x
Express the distance traveled by train B in term of x
Distance = Speed x Time
Distance = 35x
The length of the each train is 200 m.
Therefore, for the train to completely cross each other, Train B (the faster train) will have to be 200 ahead of train A.
Convert 200 m to km
200m = 0.2 km
solve x:
35x - 30x = 0.2 km
5x = 0.2
x = 0.04 h or 2.4 mins
Answer: The train will crossed each other in 2.4 mins.
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