GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 16 Jul 2018, 19:21

Close

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

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.

Close

Request Expert Reply

Confirm Cancel

a student has to answer 7 out of 10 questions on an exam.

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
Joined: 22 Dec 2017
Posts: 3
a student has to answer 7 out of 10 questions on an exam. [#permalink]

Show Tags

New post 22 Dec 2017, 12:03
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

a student has to answer 7 out of 10 questions on an exam. how many ways can he make his selection if:
a- there are no restrictions?
b-he must answer the first two question or the last three questions?

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Intern
Intern
avatar
B
Joined: 17 Dec 2017
Posts: 29
Location: Uzbekistan
Schools: Wharton '20
GMAT 1: 650 Q39 V40
GPA: 4
Re: a student has to answer 7 out of 10 questions on an exam. [#permalink]

Show Tags

New post 22 Dec 2017, 12:10
A) 10c7 = 120

B) is it 10! - 10c8 + 10! - 10c7 ?


Sent from my iPhone using GMAT Club Forum

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: a student has to answer 7 out of 10 questions on an exam.   [#permalink] 22 Dec 2017, 12:10
Display posts from previous: Sort by

a student has to answer 7 out of 10 questions on an exam.

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Moderators: chetan2u, KarishmaB, niks18, Bunuel

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.