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

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

A, B, C run a circular track starting from the same point [#permalink]
12 May 2007, 12:44

A, B, C run a circular track starting from the same point simulataneously and in the same direction at speeds of 4 km/hr, 6km/hr and 8 km/hr respectively. If the length of the track is 400 meters. When will A, B, C meet at the starting point for the first time after they started the race?

a. 1 min
b. 5 min
c. 12 min
d. 20 min
c. 24 min

_________________________________________________
In the above question, when will they meet for the 1st time after they started the race?

a. 1 min
b. 5 min
c. 12 min
d. 20 min
c. 24 min

Last edited by mbunny on 12 May 2007, 13:41, edited 1 time in total.

Re: Circular Track - Rate problem [#permalink]
12 May 2007, 12:59

mbunny wrote:

A, B, C run a circular track starting from the same point simulataneously and in the same direction at speeds of 4 km/hr, 6km/hr and 8 km/hr respectively. If the length of the track is 400 miles. When will A, B, C meet at the starting point for the first time after they started the race?

a. 1 min b. 5 min c. 12 min d. 20 min c. 24 min

_________________________________________________ In the above question, when will they meet for the 1st time after they started the race?

a. 1 min b. 5 min c. 12 min d. 20 min c. 24 min

do you have complete question. your question seems unclear.

Re: Circular Track - Rate problem [#permalink]
12 May 2007, 13:28

mbunny wrote:

A, B, C run a circular track starting from the same point simulataneously and in the same direction at speeds of 4 km/hr, 6km/hr and 8 km/hr respectively. If the length of the track is 400 miles. When will A, B, C meet at the starting point for the first time after they started the race?

a. 1 min b. 5 min c. 12 min d. 20 min c. 24 min

_________________________________________________ In the above question, when will they meet for the 1st time after they started the race?

a. 1 min b. 5 min c. 12 min d. 20 min c. 24 min

I'm sorry but your question is incorrect (probably just a typo) In order to solve it you have to change 400 MILES to 400 METERS

if you draw on a piece of paper 4 circles and see the A and B are when C finishes the lap, you'll see that all of them meet after C completes 4 laps.
the length of the lap is 400 METERS so the total distance C covers is 1.6km
C is running at the speed 8km/h so time spent is 1.6/8=0.2hour or 12 minutes

I opted to do my Team-Based Discussion (TBD) and interview in London with a member of the Admissions office. It was a benefit to have been through the...

After so many confusing thoughts, I decided to write this post. I am yet to finalize the list of B-Schools I am applying to. For a background check, I...