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A, 210 metre long train crosses a running man at 9 kmph in opposite direction, in 6 seconds. Find the speed of the train.

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Important Questions on Ratio and Proportion

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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A railway train 100 m long is running at the speed of 30 km/hr. In what time does it pass a man standing near a line?
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A railway train 100 m long is running at the speed of 30 km/h. In what time does it pass a man standing near a line?
MEDIUM
Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A train starts from A at  6AM and reaches B at 11AM on the same day. Another train starts from B at  8AM and reaches A at 3PM on the same day. At what time the two trains will have crossed each other?
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
Two trains, A and B, start from station X and Y towards each other. They take 4 hours 48 minutes and 3 hours 20 minutes to reach Y and X, respectively, after they meet. If train A is moving at 45 km/h then the speed of train B is:
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
Two stations L and M are 180 km apart from each other. A train leaves L to M and simultaneously another train leaves from M to L. Both trains meet after 9 hours. If the speed of the first train is 10 km/hr more than that of the second train, what is the speed (in km/hr) of the slower train?
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
The distance between two stations, A and B is 428 km. A train starts from station 'A' at 6:00 a.m. and moves towards station 'B' at an average speed of 48 km/h. Another train starts from station 'B' at 6:20 a.m. and moves towards station 'A' at an average speed of 55 km/h. At what time will the trains meet?
MEDIUM
Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
The distance between the two stations is 390 km. One train travels 182 km at the speed of 56 km/hr, and 108 km at the speed of 72 km/hr. The train travels the rest of the distance in 1.25 hours. What is the average speed of the train for the entire distance? 
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A train 100 m long running at uniform speed crosses a station which is 500 m long  in 25 seconds. How long will it take for the train to pass a station that is 380 m long?
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A train 150 m long passes a telegraphic post in 12 seconds. Find the speed of the train (in km/hr.)
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A train starts from a place A at 8 : 00 a.m. and arrives at another place B at 1 : 30 p.m. on the same day. If the speed of the train is 30 km/hr. What will be the distance (in km.) covered by the train?
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A train X travelling at 60 km/h overtakes another train Y, 225 m long, and completely passes it in 72 seconds. If the trains had been going in opposite direction, they would have passed each other in 18 seconds. The length (in m) of X and the speed (in km/h) of Y are respectively:
MEDIUM
Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A train of 150 metres crosses a railway bridge in 26 seconds at a speed of 90 km/hr. What is the length of this bridge ?
MEDIUM
Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
X and Y are two stations which are 280 km apart. A train starts at a certain time from X and travels towards Y at 60 km/h. After two hours, another train starts from Y and travels towards X at 20 km/h. After how many hours does the train leaving from X meets the train which left from Y.
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
The speed of a train is 72 km/hr and its length is 200 metre. What will be the time (in minutes) taken by the train to cross a pole.
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains

The two trains leave Varanasi for Lucknow at 11:00 am and at 11:30 am. Respectively and travel at a speed of 110 km/h and 140 km/h respectively. How many kilometers from Varanasi will both trains meet?

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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
Two trains running in the opposite direction on parallel tracks, at speeds of 42 kmph and 57 kmph, take 18 seconds to cross each other. If the length of one train is 270 m, then the length of the other train is:
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A 230 m long train has to cross a platform of length 750 m. If the train is running at a speed of 72 kmh. the time taken is_____.
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
A 100 meters long train crosses a 800 meters long bridge. If the speed of the train is 30 km/h, then what is the time taken by the train to cross a bridge?
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains
Two trains are running in opposite directions with the same speed. If the length of each train is 80 metres and they cross each other in 16 seconds, then what is the speed (in km/hr) of each train?
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Quantitative Aptitude>Arithmetic>Ratio and Proportion>Problems on Trains

Quantity1: Train A is running at a speed of 25 m/sec crosses. Train B is coming from opposite direction running at a speed of 15 m/sec in 12 seconds. Length of Train A is twice of Train B. Find the length of train A.

Quantity 2: 160 Meters.