Book Maths Puzzle

A train ,130 meters long travels at a speed of 45 km/hr crosses a bridge in 30 seconds. The length of the bridge is

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Book Other Question

A train has a length of 150 meters . it is passing a man who is moving at 2 km/hr in the same direction of the train, in 3 seconds. Find out the speed of the train. A train is running at a speed of 40 km/hr and it crosses a post in 18 seconds. What is the length of the train?