F two trains of length a metres and b metres are moving in opposite directions at u m / s and v m/s, then time taken by the trains to cross each othe
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If two train of length a metres and b metres are moving in opposite direction at u m/s and v m/s: then time taken by trains to cross each other. If two trains of length a metres and n metres are moving in the same direction at u m/s and v m/s: then time taken by faster train to cross the slower train.
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YOUR QUESTIONS ANSWER IS,
= (a+b)/(u+v)
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