Question
Train A running with a sped of 18 km/h crosses a vertical pole in 7 seconds. Speed of train A is 6 m/s less than speed of train B, and length of train B is 20 metres less than length of train
Train A running with a sped of 18 km/h crosses a vertical pole in 7 seconds. Speed of train A is 6 m/s less than speed of train B, and length of train B is 20 metres less than length of train
A. Find the time taken by train B to cross a 282 metre long tunnel.
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