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:

Problem#101: A student committee on academic integrity has [#permalink]

Show Tags

21 Nov 2005, 06:32

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Problem#101:

A student committee on academic integrity has 90 ways to select a President and VP from a group of candidates. The same person cannot hold both positions. How many students are in the group?

Re: ProjectGMAT- Last Problem in the book [#permalink]

Show Tags

21 Nov 2005, 08:29

GMATT73 wrote:

Problem#101:

A student committee on academic integrity has 90 ways to select a President and VP from a group of candidates. The same person cannot hold both positions. How many students are in the group?

Re: ProjectGMAT- Last Problem in the book [#permalink]

Show Tags

22 Nov 2005, 01:31

2

This post received KUDOS

GMATT73 wrote:

Problem#101:

A student committee on academic integrity has 90 ways to select a President and VP from a group of candidates. The same person cannot hold both positions. How many students are in the group?

This is a permutation question as the order is important. Let their be "N" students. We are given that NP2 = 90
i.e n!/(n-1)! = 90
i.e n(n-1) = 90
n^2-n-90 = 0
Solving this quadriatic equn we get n = 10 or n=-9, n = -9 is not possible. Hence n = 10. or 10 students in the group.

Permutatino should be used. Consider two people, Bill and Charlie. Bill being preseident and Charlie being VP is different from Biill being VP and Charlie being president.

So XP2 = x!/(x-2)! = 90 --> x is the number of people

Re: Problem#101: A student committee on academic integrity has [#permalink]

Show Tags

15 Feb 2016, 09:15

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.
_________________

Re: Problem#101: A student committee on academic integrity has [#permalink]

Show Tags

25 Sep 2017, 11:01

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.
_________________