1 / 4

Tips on cracking Aptitude Questions Related To Trains

Tips on cracking Aptitude Questions Related To Trains [ https://learningpundits.com/module-view/62-trains/1-tips-on-trains/ ].<br><br> LearningPundits helps Job Seekers make great CVs [ https://learningpundits.com/module-view/1-cv-preparation-for-freshers/1-cv-writing-tips-for-freshers/ ] , master English Grammar and Vocabulary [ https://learningpundits.com/course/4-english-grammar/ ] , ace Aptitude Tests [ https://learningpundits.com/course/11-mathematical-aptitude/ ], speak fluently in a Group Discussion [ https://learningpundits.com/module-view/6-group-discussion-questions/1-tips-for-speaking-in-a-group-discussion/ ] and perform well in Interviews [ https://learningpundits.com/course/2-personal-interview/ ] We also conduct weekly online contests on Aptitude and English [ https://learningpundits.com/contest ]. We also allow Job Seekers to apply for Jobs [ https://learningpundits.com/applyForJobs ]

LearningPundits
Download Presentation

Tips on cracking Aptitude Questions Related To Trains

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 2 TIPS on cracking Aptitude Questions on Trains

  2. Tip #1: Understand the concepts involved in a train crossing a pole or a platform. • Time taken by a train of length L to pass a pole or standing man or a signal post is equal to the time taken by the train to cover distance L. • Time taken by a train of length L to pass a station of length b is the time taken by the train to cover the distance (L + b). • Question: A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train? • Solution: • Time taken to cross a pole = time taken to cover distance equal to its own length. • Speed of the train in m/s = 60 x 5 / 18 = (50/3) m/s. • Length of the train = Speed of the train x Time taken to cross the pole • = 50/3 x 9 • Length of the train = 150m. • Question: A train passes a station platform in 36 sec and a man standing on the platform in 20 sec. If the speed of the train is 54 km/hr, what is the length of the platform? • Solution: • Speed of the train in m/s = 54 x 5 / 18 = 15m/s. • Length of the train = 15 x 20 = 300m. • Distance traveled in 36s = 15 x 36 = 540m. (This is the length of the train + platform combined) • Length of the platform = (540 – 200)m = 240m.

  3. Tip #2: For problems on 2 trains, use the concept of relative velocity • If two trains of length a and b are moving in opposite directions at u m/s and v m/s, then time taken by the trains to cross each other = (a + b) / (u + v) . • If two trains of length a and b are moving in the same direction at u m/s and v m/s, then time taken by the faster train to cross the slower train = (a + b) / (u - v) . • Question: 2 trains of length 137 m and 163 m are running towards each other and speeds 42 km/hr and 48 km/hr respectively. In what time will the two trains cross each other? • Solution: • Relative velocity = 42 + 48 = 90 km/hr = (90 x 5/18) m/s = 25 m/s. (Opposite directions) • Time taken to cross each other = 300 / 25 = 12 sec. • Question: 2 trains running in opposite directions cross a man standing on the platform in 27s and 17s respectively and they cross each other in 23s. Find the ratio of their speeds. • Solution: • Let the speeds be x m/s and y m/s respectively. • Then, length of 1st train = 27x and that of 2nd train = 17y. • Time taken to cross each other = (27x + 17y) / (x + y) = 23. • 27x + 17y = 23x + 23y. • 4x = 6y. • x : y = 3 : 2.

  4. About Us LearningPundits helps Job Seekers make great CVs, master English Grammar and Vocabulary , ace Aptitude Tests , speak fluently in a Group Discussion and perform well in Interviews. We also conduct weekly online contests on Aptitude and English. Job Seekers can also apply for jobs on LearningPundits. You can read more about Tips on cracking Aptitude Questions on Trains.

More Related