Question

Train A, 600 mts long is running at 80 kmph will take how much time to cross a man
sitting in another train which is 400 metres long, running at 64 kmph in the opposite
direction?
(a) 9 seconds (b) 15 seconds (c) 9.6 seconds (d) 10.8 seconds
​

Answer 1

Answer:

(b) 15 seconds

Step-by-step explanation:

Distance = 600 metres

Total Speed = 64 + 80 = 144 kmph (added because they are travelling in opposite directions)

In m/sec, speed = 144 *(5/18) = 40 m/sec

Distance = Speed * Time

600 = 40 * Time

Therefore, Time = 15 seconds

Answer 2

Answer:

15

Step-by-step explanation:

Distance = 600 metres

Total Speed = 64 + 80 = 144 kmph (added because they are travelling in opposite directions)

In m/sec, speed = 144 *(5/18) = 40 m/sec

Distance = Speed * Time

600 = 40 * Time

Therefore, Time = 15 seconds