Problems On Trains
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11 Two trains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 metres, in what time will they cross each other travelling in opposite direction?
12 A train takes 9 s to cross a pole. If the speed of the train is 48 km/h, then length of the train is
13 Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively, and they cross each other in 23 seconds. The ratio of their speeds is
14 Two stations P and Q are 110 km apart on a straight line. One train starts from P at 7 am and travels towards Q at 20 km/h speed. Another train starts from Q at 8 am and travels towards P at a speed of 25 km/h. At what time will they meet?
15 Two trains 250 m and 200 m long are running on parallel track at the rate of 36 km/hr and 45 km/hr respectively. In how much time will they cross each other, if they are running in the same direction?
16 A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
17 9 Two trains start at the same time from points A and B towards each other and after crossing each other, they take 25 h and 9 h in reaching points B and A, respectively. Find the ratio of speeds of 1st train to that of 2nd train:
18 A train crosses a bridge of length 150 m in 15 s and a man standing on it in 9 s. The train is travelling at a uniform speed. Length of the train is:
