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

It is currently 20 Sep 2018, 17:47

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 promoter is organizing an opera concert. Ten singers are available f

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Board of Directors
User avatar
P
Joined: 01 Sep 2010
Posts: 3417
A promoter is organizing an opera concert. Ten singers are available f  [#permalink]

Show Tags

New post 27 Aug 2018, 14:58
1
Top Contributor
1
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

60% (01:52) correct 40% (01:51) wrong based on 20 sessions

HideShow timer Statistics

A promoter is organizing an opera concert. Ten singers are available for the program: 3 sopranos, 3 mezzos, 2 tenors and 2 baritones. If the promoter intends every segment to be a duet by performers with different vocal ranges, how many pairings of performers are possible?


A. 6

B. 10

C. 24

D. 36

E. 37

_________________

COLLECTION OF QUESTIONS AND RESOURCES
Quant: 1. ALL GMATPrep questions Quant/Verbal 2. Bunuel Signature Collection - The Next Generation 3. Bunuel Signature Collection ALL-IN-ONE WITH SOLUTIONS 4. Veritas Prep Blog PDF Version 5. MGMAT Study Hall Thursdays with Ron Quant Videos
Verbal:1. Verbal question bank and directories by Carcass 2. MGMAT Study Hall Thursdays with Ron Verbal Videos 3. Critical Reasoning_Oldy but goldy question banks 4. Sentence Correction_Oldy but goldy question banks 5. Reading-comprehension_Oldy but goldy question banks

Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 6795
Re: A promoter is organizing an opera concert. Ten singers are available f  [#permalink]

Show Tags

New post 27 Aug 2018, 20:18
1
carcass wrote:
A promoter is organizing an opera concert. Ten singers are available for the program: 3 sopranos, 3 mezzos, 2 tenors and 2 baritones. If the promoter intends every segment to be a duet by performers with different vocal ranges, how many pairings of performers are possible?


A. 6

B. 10

C. 24

D. 36

E. 37



So we have to choose two performers , each from a different group..

Let's see ways ..
1) S and M - 3*3=9
2) S and T - 3*2=6
3) S and B - 3*2=6
4) M and T - 3*2=6
5) M and B - 3*2=6
6) T and B - 2*2=4

Total - 9+6+6+6+6+4 = 37

E

Another give away are the choices..
In the numbers only 3*3 will be odd ways, when S and M and rest all will be even as T and B are even so our answer has to be ODD as O+E+E+E....=O

E
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


GMAT online Tutor

Re: A promoter is organizing an opera concert. Ten singers are available f &nbs [#permalink] 27 Aug 2018, 20:18
Display posts from previous: Sort by

A promoter is organizing an opera concert. Ten singers are available f

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

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®.