A bike crosses A 700 metre long bridge in 35 seconds. How long will it take for the bike to cross A 900m long train running at the speed of 54 km/hr in the same direction.
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Answer:If the train crosses tunnel in one minute, it means it covers the sum of length of ... A train which is 700 m long is running at the speed of 72 km per hour. ... Time taken to cross the tunnel = 1 minute = 60 sec. ... trains are running at 90 km/hr and 70km/hr respectively in the same direction. ... Length of tunnel = 1600–700 =900 m.
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