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

It is currently 13 Dec 2018, 10:35

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
Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
  • GMATbuster's Weekly GMAT Quant Quiz, Tomorrow, Saturday at 9 AM PST

     December 14, 2018

     December 14, 2018

     09:00 AM PST

     10:00 AM PST

    10 Questions will be posted on the forum and we will post a reply in this Topic with a link to each question. There are prizes for the winners.
  • The winning strategy for 700+ on the GMAT

     December 13, 2018

     December 13, 2018

     08:00 AM PST

     09:00 AM PST

    What people who reach the high 700's do differently? We're going to share insights, tips and strategies from data we collected on over 50,000 students who used examPAL.

Fewer than 48 children were surveyed about their pet preferences

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

Hide Tags

Manager
Manager
User avatar
G
Joined: 25 Sep 2018
Posts: 119
Location: United States (CA)
Concentration: Finance, Strategy
GMAT 1: 640 Q47 V30
GPA: 3.97
WE: Investment Banking (Investment Banking)
CAT Tests
Fewer than 48 children were surveyed about their pet preferences  [#permalink]

Show Tags

New post 05 Oct 2018, 06:33
5
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

50% (01:38) correct 50% (01:55) wrong based on 26 sessions

HideShow timer Statistics

Fewer than 48 children were surveyed about their pet preferences. Some of the children prefer foxes, some prefer wolfs, while the remaining prefer vultures. How many of the children surveyed prefer foxes as pets?
1) The ratio of the number of children who prefer foxes to the number of children who prefer wolfs is 4 to 3.
2) The ratio of the number of children who prefer foxes to the total number of children surveyed is 5 to 9.

_________________

Why do we fall?...So we can learn to pick ourselves up again



If you like the post, give it a KUDOS!

Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7106
Re: Fewer than 48 children were surveyed about their pet preferences  [#permalink]

Show Tags

New post 05 Oct 2018, 06:51
Fewer than 48 children were surveyed about their pet preferences. Some of the children prefer foxes, some prefer wolfs, while the remaining prefer vultures. How many of the children surveyed prefer foxes as pets?

So f+w+v<48

1) The ratio of the number of children who prefer foxes to the number of children who prefer wolfs is 4 to 3.
F:w=4:3
We can have all three f:w:c = 4:3:1..total 4x+3x+X=8x so numbers could be 8,16,24,32,40
Ratio could be 4:3:2=9x could be 9,18,27
Accordingly f will change but will be a multiple of 4
Insufficient

2) The ratio of the number of children who prefer foxes to the total number of children surveyed is 5 to 9.
f:t=5:9 so total is multiple of 7 and f a multiple of 5..
Insufficient

Combined..
f is a multiple of 4 and 5 so a multiple of 20..
If it is 20, total is 9*4=36..
If we take f as next multiple of 20 that is 40, t becomes 9*4*2=72 >48 so not possible
So total is 36 and f is 20
Sufficient

C
_________________

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

GMAT Club Bot
Re: Fewer than 48 children were surveyed about their pet preferences &nbs [#permalink] 05 Oct 2018, 06:51
Display posts from previous: Sort by

Fewer than 48 children were surveyed about their pet preferences

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


Copyright

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®.