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A train 150 meters long passes a standing man in 5 seconds. How long will it take to cross a bridge 180 metres long?

A train 150 meters long passes a standing man in 5 seconds. How long will it take to cross a bridge 180 metres long? 1. 3 seconds 12 - seconds 3. 7; seconds 4. 10 seconds None of these 1/2 2. 5.

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