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A train is traveling at a speed of 36 km per hour crosses a platform in 20 seconds and a man standing a platform in 10 seconds what is he length of platform in meters |
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Answer» Answer: 100 m Explanation: DISTANCE TRAVELLED by train to cross the man = Length of the train = L Distance = Speed × Time L = (36 × 5/18 m/s) × 10 s L = 100 m Length of the PLATFORM = L' Distance travelled by train to COMPLETELY cross the platform = L + L' = 100 m + L' Distance = Speed × Time 100 m + L' = (36 × 5/18 m/s) × 20 s 100 m + L' = 200 m L' = 100 m |
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