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

It is currently 16 Jan 2019, 16:37

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 January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
  • The winning strategy for a high GRE score

     January 17, 2019

     January 17, 2019

     08:00 AM PST

     09:00 AM PST

    Learn the winning strategy for a high GRE score — what do people who reach a high score do differently? We're going to share insights, tips and strategies from data we've collected from over 50,000 students who used examPAL.
  • Free GMAT Strategy Webinar

     January 19, 2019

     January 19, 2019

     07:00 AM PST

     09:00 AM PST

    Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

If the ratio of boys to girls in a class is 5 to 3, which of the follo

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

Hide Tags

 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 52161
If the ratio of boys to girls in a class is 5 to 3, which of the follo  [#permalink]

Show Tags

New post 24 Dec 2018, 20:18
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

97% (00:27) correct 3% (00:33) wrong based on 32 sessions

HideShow timer Statistics

Director
Director
User avatar
P
Joined: 18 Jul 2018
Posts: 557
Location: India
Concentration: Finance, Marketing
WE: Engineering (Energy and Utilities)
Premium Member Reviews Badge CAT Tests
Re: If the ratio of boys to girls in a class is 5 to 3, which of the follo  [#permalink]

Show Tags

New post 24 Dec 2018, 20:21
Ratio is 5x:3x.

Total is 8x. Only 36 is not a multiple of 8.

B is the answer

Posted from my mobile device
_________________

If you are not badly hurt, you don't learn. If you don't learn, you don't grow. If you don't grow, you don't live. If you don't live, you don't know your worth. If you don't know your worth, then what's the point?

VP
VP
User avatar
G
Joined: 18 Aug 2017
Posts: 1162
Location: India
Concentration: Sustainability, Marketing
WE: Marketing (Energy and Utilities)
CAT Tests
Re: If the ratio of boys to girls in a class is 5 to 3, which of the follo  [#permalink]

Show Tags

New post 25 Dec 2018, 01:58
Bunuel wrote:
If the ratio of boys to girls in a class is 5 to 3, which of the following could not be the number of students in the class?

A. 32
B. 36
C. 40
D. 48
E. 56



we check by using relation
8*x/5= answer options
from given options only 36 wont be correct

IMO B
_________________

If you liked my solution then please give Kudos. Kudos encourage active discussions.

Manager
Manager
User avatar
B
Joined: 14 Feb 2016
Posts: 73
Re: If the ratio of boys to girls in a class is 5 to 3, which of the follo  [#permalink]

Show Tags

New post 26 Dec 2018, 15:04
We can exploit integer constraints here to deduce the right answer.
We can't have half a girl, or half a boy in class, so we need an integer.

Using the unknown multiplier rule:

3x + 5x = 8x = ?????

What answer choice is not divisible by 8?

Answer choice B
_________________

Please provide kudos if you liked my post! I would really like to use the PDF file!!

GMAT Club Bot
Re: If the ratio of boys to girls in a class is 5 to 3, which of the follo &nbs [#permalink] 26 Dec 2018, 15:04
Display posts from previous: Sort by

If the ratio of boys to girls in a class is 5 to 3, which of the follo

  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®.