
Discuss Problems on Trains within the Quant forums, part of the CAT, XAT, MAT, CET, JMET and other Indian MBA Entrance Exams category; Hi, The most common questions in quant section are asked about Train speed, distance etc. Let's have a thread where ...
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Problems on Trains 
Problems on Trains 
July 17th, 2013
Hi, The most common questions in quant section are asked about Train speed, distance etc. Let's have a thread where we shall discuss problems on Trains. A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train? A. 120 metres B. 180 metres C. 324 metres D. 150 metres Advertisements
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Re: Problems on Trains 
Re: Problems on Trains 
July 18th, 2013
Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is: A. 50 m B. 72 m C. 80 m D. 82 m To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.  
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Re: Problems on Trains 
Re: Problems on Trains 
July 19th, 2013
The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is: A. 200 m B. 225 m C. 245 m D. 250 m To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.  
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Re: Problems on Trains 
Re: Problems on Trains 
July 21st, 2013
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: A. 1 : 3 B. 3 : 2 C. 3 : 4 D. None of these To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.  
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Re: Problems on Trains 
Re: Problems on Trains 
January 11th, 2016
Quote:
Answer: Option D Explanation: Speed= { 60 * 5/18}m/sec = {50/3}m/sec Length of the train = (speed * Time) = {50/3 * 9}m = 150m  
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Re: Problems on Trains 
Re: Problems on Trains 
January 11th, 2016
Quote:
Let the length of each train be x metres. Then, distance covered = 2x metres. Relative speed = (46  36) km/hr = (10 * 5/18)m/sec = (25/9)m/sec so that 2x/36 = 25/9 2x = 100 x = 50  
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Re: Problems on Trains 
Re: Problems on Trains 
January 11th, 2016
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Explanation : Speed = (45 * 5/18)m/sec = (25/2)m/sec Time = 30 sec Let the length of bridge be x metres. Then, (130 + x)/30 = 25/2 = 2 (130 + x) = 750 x = 245m  
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Re: Problems on Trains 
Re: Problems on Trains 
January 11th, 2016
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Let the speeds of the two trains be x m/sec and y m/sec respectively. Then, length of the first train = 27x metres, and length of the second train = 17y metres. (27x + 17y)/ x+y = 23 27x + 17y = 23x + 23y 4x = 6y x/y = 3/2  
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