bee puzzle

[prakharkanpur]

There are 2 trains entering a tunnel 800metre long travelling at 100 m/s at the same time from the opposite directions.as soon as they start the enter the tunnel a supersonic bee starts flying from one train towards another train.As soon as it reaches the other train it heads back towards the first.This process is followed by the bee until it collides in the middle of tunnel(the bee survives).How far did the bee travel????:SugarwareZ-192:

 

[siddharth.dubey6486]

There are 2 trains entering a tunnel 800metre long travelling at 100 m/s at the same time from the opposite directions.as soon as they start the enter the tunnel a supersonic bee starts flying from one train towards another train.As soon as it reaches the other train it heads back towards the first.This process is followed by the bee until it collides in the middle of tunnel(the bee survives).How far did the bee travel????:SugarwareZ-192:

It will take 4 sec to collide so bee will travel 340(speed of sound)*4 = 1360 m