Question

Train 'A' having a speed of 20 m/s can cross a man in 5 seconds. The length of train 'B' is 100 metres more than the length of 'A'. If the speed of 'B' is 40 m/sec and both trains are travelling towards each other, then find the time taken by them to cross each other.

Q: Answer-Train 'A' having a speed of 20 m/s can cross a man in 5 seconds. The length of train 'B' is 100 metr...

Length of train A 20 5 100 metresLength of train B 100 100 200 metresRelative speed 20 40 60 msecRequired time 100 200 60 300 60 5.0 seconds

A 4.0 seconds

B 4.5 seconds

C 5.0 seconds

D 5.5 seconds

E 6.0 seconds

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Train 'A' having a speed of 20 m/s can cross a man in 5 seconds. The length of train 'B' is 100 metres more than the length of 'A'. If the speed of 'B' is 40 m/sec and both trains are travelling towards each other, then find the time taken by them to cross each other.

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