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Two train are running in opposite direction with speed of 62 km/hr and 40 km/hr respectively. If the length of one train is 250 meters and they cross each other in 18 seconds. The length of the other train is ___.

A 150 meters long train crosses a man walking at the speed of 8 km/hr in the opposite direction in 6 seconds. The speed of the train in km/hr is ___.

A train 50 meters long passes a platform 100 meters long in 10 seconds. The speed of the train ___.

If Abdul Karim can type a page in P minutes, what piece of the page can he do in 5 minutes?

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