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 500,000 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:

There are a total of 19 students in Mr. Schmidt's gym class. Over the [#permalink]

Show Tags

19 Jun 2011, 23:27

00:00

A

B

C

D

E

Difficulty:

25% (medium)

Question Stats:

89% (01:40) correct
11% (00:00) wrong based on 9 sessions

HideShow timer Statistics

There are a total of 19 students in Mr. Schmidt's gym class. Over the course of a badminton unit, each of the 19 students will compete exactly once against every other student in the class. How many total games of badminton will be played?

Re: There are a total of 19 students in Mr. Schmidt's gym class. Over the [#permalink]

Show Tags

20 Jun 2011, 02:04

guygmat wrote:

There are a total of 19 students in Mr. Schmidt's gym class. Over the course of a badminton unit, each of the 19 students will compete exactly once against every other student in the class. How many total games of badminton will be played?

Re: There are a total of 19 students in Mr. Schmidt's gym class. Over the [#permalink]

Show Tags

20 Jun 2011, 02:18

guygmat wrote:

There are a total of 19 students in Mr. Schmidt's gym class. Over the course of a badminton unit, each of the 19 students will compete exactly once against every other student in the class. How many total games of badminton will be played?

A)38 B)171 C)190 D)210 E)361

my answer B

here we go!

19*19=361

361-19=342 number of games wich teams played with each other (2 times with each) 342/2=171 number of games which play for 1 game with each other.

Re: There are a total of 19 students in Mr. Schmidt's gym class. Over the [#permalink]

Show Tags

21 Jun 2011, 11:12

I would calculate this way- first Student will have chance to play 18 games (given the condn that one can have only one game with the other student), second will have 17 games, third will have 16 games and so on...

So all the # games would be sum of the series 1+2+ .....+18= (1+18)*18/2= 171 so B it is! Let me know if there's any disconnect!
_________________

There’s something in Pacific North West that you cannot find anywhere else. The atmosphere and scenic nature are next to none, with mountains on one side and ocean on...

This month I got selected by Stanford GSB to be included in “Best & Brightest, Class of 2017” by Poets & Quants. Besides feeling honored for being part of...

Joe Navarro is an ex FBI agent who was a founding member of the FBI’s Behavioural Analysis Program. He was a body language expert who he used his ability to successfully...