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 Author: Bunuel [ 06 Jan 2015, 08:02 ] Post subject: Two trains are traveling on parallel tracks in the same direction. The Tough and Tricky questions: Distance/Rate Problems.Two trains are traveling on parallel tracks in the same direction. The faster train travels at 130 miles per hour, while the slower train travels at 100 miles per hour. At 2 o’clock the faster train is 10 miles behind the slower one. How far apart are the two trains at 5 o'clock?A. 60 milesB. 80 milesC. 90 milesD. 120 milesE. 400 miles

 Author: PareshGmat [ 06 Jan 2015, 22:54 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Answer = B. 80 milesRelational speed = 130 - 100 = 30 miles per hourIn 3 hours, difference = 30 * 3 = 90 milesFast train trailing 10 miles, so effective difference = 90 - 10 = 80 miles

 Author: littlewarthog [ 06 Jan 2015, 08:22 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Answer B.The relative speed of the two trains is 30 miles per hour. If the faster train is 10 miles behind the slower one at 2 o'clock, it must be 90 miles further 3 hours later. That means, it is 80 miles ahead of the slower train at 5 o'clock.

 Author: g106 [ 06 Jan 2015, 09:21 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Bunuel wrote:Tough and Tricky questions: Distance/Rate Problems.Two trains are traveling on parallel tracks in the same direction. The faster train travels at 130 miles per hour, while the slower train travels at 100 miles per hour. At 2 o’clock the faster train is 10 miles behind the slower one. How far apart are the two trains at 5 o'clock?A. 60 milesB. 80 milesC. 90 milesD. 120 milesE. 400 milesKudos for a correct solution.In three hours faster train travels 390 milesIn three hours slower train travels 300 milessince the faster train was 10 miles behind at the starting the distance between the trains at 5 o clock is 390-300-10 = 80Ans B

 Author: DesiGmat [ 09 Jan 2015, 01:04 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Relative Speed = 30Distance Travel in 3 hours = 30*3 = 90Already in-between distance = 10 milesSo the answer has to be 90-10 = 80milesOption B

 Author: Bunuel [ 09 Jan 2015, 06:38 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Bunuel wrote:Tough and Tricky questions: Distance/Rate Problems.Two trains are traveling on parallel tracks in the same direction. The faster train travels at 130 miles per hour, while the slower train travels at 100 miles per hour. At 2 o’clock the faster train is 10 miles behind the slower one. How far apart are the two trains at 5 o'clock?A. 60 milesB. 80 milesC. 90 milesD. 120 milesE. 400 milesKudos for a correct solution.OFFICIAL SOLUTION:(B) The faster train is traveling 30 mph faster than the slower train. At 5 o'clock the faster train will travel 3 hours × 30 mph = 90 miles more than the slower one. Considering that it is 10 miles behind the slower train at 2 o’clock, it will be 90 – 10 = 80 miles ahead at 5 o’clock. The correct answer is B.

 Author: Arsh4MBA [ 06 Sep 2017, 04:54 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Bunuel wrote:Tough and Tricky questions: Distance/Rate Problems.Two trains are traveling on parallel tracks in the same direction. The faster train travels at 130 miles per hour, while the slower train travels at 100 miles per hour. At 2 o’clock the faster train is 10 miles behind the slower one. How far apart are the two trains at 5 o'clock?A. 60 milesB. 80 milesC. 90 milesD. 120 milesE. 400 milesKudos for a correct solution.Relative speed is 30 miles per hr.So at 2 o'clock Train F is 10 miles behind.So in 3hrs it has to be 90 miles ahead consider relative speed of 30mph.So at 5 it will be -10+90 = 80 miles ahead

 Author: ScottTargetTestPrep [ 11 Sep 2017, 10:58 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Quote:Two trains are traveling on parallel tracks in the same direction. The faster train travels at 130 miles per hour, while the slower train travels at 100 miles per hour. At 2 o’clock the faster train is 10 miles behind the slower one. How far apart are the two trains at 5 o'clock?A. 60 milesB. 80 milesC. 90 milesD. 120 milesE. 400 milesKudos for a correct solution.In 3 hours, the faster train has traveled 130 x 3 = 390 miles and the slower train has traveled 100 x 3 = 300 miles. Thus, after 3 hours, the faster train should be 90 miles ahead of the slower train. However, since at 2 o’clock the faster train is 10 miles behind the slower one, the faster train is only 90 - 10 = 80 miles ahead of the slower train. Answer: B

 Author: rgreenhill [ 05 Apr 2021, 07:20 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Imagine the slower train is stationary and then the faster train is moving away from it at 30mph. Between 2 and 5 the faster train would have travelled 3*30 miles = 90 miles. If it starts from 10 miles behind, then it is 80 miles in front.

 Author: rgreenhill [ 05 Apr 2021, 07:20 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Imagine the slower train is stationary and then the faster train is moving away from it at 30mph. Between 2 and 5 the faster train would have travelled 3*30 miles = 90 miles. If it starts from 10 miles behind, then it is 80 miles in front.

 Author: bumpbot [ 19 Dec 2022, 07:55 ] Post subject: Re: Two trains are traveling on parallel tracks in the same direction. The Hello from the GMAT Club BumpBot!Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

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