Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2601:30 AM EDT
-02:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
Updated on: 13 Mar 2011, 10:01
Originally posted by nafishasan60 on 12 Mar 2011, 23:34.
Last edited by nafishasan60 on 13 Mar 2011, 10:01, edited 1 time in total.
Last edited by nafishasan60 on 13 Mar 2011, 10:01, edited 1 time in total.
Kudos
Bookmarks
1. Find the time taken by a train 120 meter long, running at 54 km/hr, in crossing an electric pole.
2. A train 160 m long is running at 40 km/hr. In how much time will it pass a platform 140 m long?
3. A train passes a standing man in 2 seconds and a platform 50 m long in 4\(\frac{1}{2}\) seconds. Find the length of the train and its speed.
4. A train 125 m long is running at 50 km/hr. In what time will it pass a man, running at 5 km/hr in the same direction in which the train is going?
5. A train 110 m long is running at 60 km/hr. In what time will it pass a man, running in the direction opposite to that of the train at 6 km/hr?
Solve these five problems. I will post explanations of these problems later.
2. A train 160 m long is running at 40 km/hr. In how much time will it pass a platform 140 m long?
3. A train passes a standing man in 2 seconds and a platform 50 m long in 4\(\frac{1}{2}\) seconds. Find the length of the train and its speed.
4. A train 125 m long is running at 50 km/hr. In what time will it pass a man, running at 5 km/hr in the same direction in which the train is going?
5. A train 110 m long is running at 60 km/hr. In what time will it pass a man, running in the direction opposite to that of the train at 6 km/hr?
Answers:
1. 15 sec.
2. 27 sec.
3. 72 km/hr & length of train 40 m.
4. 10 sec.
5. 6 sec.
1. 15 sec.
2. 27 sec.
3. 72 km/hr & length of train 40 m.
4. 10 sec.
5. 6 sec.
Solve these five problems. I will post explanations of these problems later.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
13 Mar 2011, 05:01
Kudos
Bookmarks
Hi
Please post 1 question per forum.
The answers are like this :
1) Find the time taken by a train 120 meter long, running at 54 km/hr, in crossing an electric pole.
54km/hr = 54 * 1000/60*60 = 54 * 5/18 = 15m/s
120/15 = 8 sec.
Also, the answer to this should be time taken, and not the speed as posted.
2) A train 160 m long is running at 40 km/hr. In how much time will it pass a platform 140 m long?
40 km/hr = 40 * 5/18 = 200/18
Time = (160 + 140)/200/18 = 300/200 * 18 = 27 sec
3) A train passes a standing man in 2 seconds and a platform 50 m long in 4 seconds. Find the length of the train and its speed.
L/s = 2 and L+50/s = 4.5
So 50/S = 2.5 and S = 20 m/s = 72km/hr and L = 40 M
4) A train 125 m long is running at 50 km/hr. In what time will it pass a man, running at 5 km/hr in the same direction in which the train is going?
Relative speed = 50 - 5
125/(45 * 5/18) = (18 * 125)/(45 * 5) = 2250/225 = 10 sec
5) A train 110 m long is running at 60 km/hr. In what time will it pass a man, running in the direction opposite to that of the train at 6 km/hr?
Relative speed = 60 + 6
110/(66 * 5/18) = (18 * 110)/(66 * 5) = 18 * 10/6 * 5 = 3 * 2 = 6
Please post 1 question per forum.
The answers are like this :
1) Find the time taken by a train 120 meter long, running at 54 km/hr, in crossing an electric pole.
54km/hr = 54 * 1000/60*60 = 54 * 5/18 = 15m/s
120/15 = 8 sec.
Also, the answer to this should be time taken, and not the speed as posted.
2) A train 160 m long is running at 40 km/hr. In how much time will it pass a platform 140 m long?
40 km/hr = 40 * 5/18 = 200/18
Time = (160 + 140)/200/18 = 300/200 * 18 = 27 sec
3) A train passes a standing man in 2 seconds and a platform 50 m long in 4 seconds. Find the length of the train and its speed.
L/s = 2 and L+50/s = 4.5
So 50/S = 2.5 and S = 20 m/s = 72km/hr and L = 40 M
4) A train 125 m long is running at 50 km/hr. In what time will it pass a man, running at 5 km/hr in the same direction in which the train is going?
Relative speed = 50 - 5
125/(45 * 5/18) = (18 * 125)/(45 * 5) = 2250/225 = 10 sec
5) A train 110 m long is running at 60 km/hr. In what time will it pass a man, running in the direction opposite to that of the train at 6 km/hr?
Relative speed = 60 + 6
110/(66 * 5/18) = (18 * 110)/(66 * 5) = 18 * 10/6 * 5 = 3 * 2 = 6
13 Mar 2011, 06:08
Kudos
Bookmarks
Well done Subhash 
Kudos to you!
Kudos to you! 
