Question

train a,600mts long is running at 80 km will take how much time to cross sitting in another train which is 400mtres long, running at 64 kmph in the opposite direction

Answer 1

25 seconds to cross sitting a person in another train.

Step-by-step explanation:

Train 1:-

Speed of train = 80 km/h

Length of train = 600 m

Train 2:-

Speed of train = 64 km/h

Length of train = 400 m

Train 1 crosses a person sitting in train 2 in the opposite direction.

Relative speed of train 1 w.r.t train 2 = 80 - (-64) = 144 km/h

Distance to cover = 1000 m = 1 km

$time=\dfrac{1}{144}\times 3600$              $\because 1\ h = 3600\ sec$

$time=25\ sec$

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