a train 320 metre long is running at a speed of 45 km per hour what time will it take to cross 180 metre long tunnel
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Step-by-step explanation:
Total distance = 320+180 m(length of train + length of bridge )= 0.5km
speed of train = 45km/h= 45X
time = distance / speed
= 0.5/45= 0.0111111111 hours
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