It is currently 22 May 2019, 01:17
My Tests

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.

In a group of 200 workers, 10% of the males smoke, and 49% o

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 6584
Followers: 107

Kudos [?]: 1258 [0], given: 5973

CAT Tests
In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 14 Mar 2019, 09:37
Expert's post
00:00

Question Stats:

40% (00:11) correct 60% (00:44) wrong based on 15 sessions
In a group of 200 workers, 10% of the males smoke, and 49% of the females smoke.

Quantity A
Quantity B
Total number of workers who smoke
59


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

_________________

Get the 2 FREE GREPrepclub Tests

Intern
Intern
Joined: 09 Jan 2019
Posts: 6
Followers: 0

Kudos [?]: 0 [0], given: 2

Re: In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 14 Mar 2019, 22:35
I think answer should be D, because we don't know how many men or women are there? Please explain it.
1 KUDOS received
Manager
Manager
Joined: 22 Feb 2018
Posts: 163
Followers: 2

Kudos [?]: 109 [1] , given: 22

Re: In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 15 Mar 2019, 12:07
1
This post received
KUDOS
Answer: C

Total number of workers = 200 = Men + Women
Smoking = 0.1 * Men + 0.49* Women

Since 0.49*Women must be an integer, then the lowest value for Women is 100, the other values can be 200.
So we have either 100 Women and 100 Men then Smoking = 0.1*100+0.49*100=59 OR
200 Women and 0 Men, that is impossible because it is said that 10percent of Men smoke.
The answer is C.
_________________

Follow your heart

Intern
Intern
Joined: 08 Apr 2019
Posts: 1
Followers: 0

Kudos [?]: 0 [0], given: 0

Re: In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 08 Apr 2019, 01:31
I think because the distribution of men and women is not given, we can obtain different values for the number of smokers. Therefore, the answer must be D
1 KUDOS received
Intern
Intern
Joined: 07 Apr 2019
Posts: 4
Followers: 0

Kudos [?]: 4 [1] , given: 1

Re: In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 08 Apr 2019, 02:27
1
This post received
KUDOS
Since there are 49% of the women who smoke and the no of women will be integer therefore the no of women will be multiple of 100.
Minimum Value of no of women will be 100 , In this case no of Men will be 100 .
Therefore the 49% of 100 + 10% of 100= 59, which makes quantity A and quantity B equal .
-----------------------------------------------------------------------------------------------------------------------------------------
Next value of no of women will be 200 which makes No of men=0, which is impossible as it is given that 10% of men Smoke

So the Answer is C
1 KUDOS received
Intern
Intern
Joined: 28 Apr 2019
Posts: 24
Followers: 0

Kudos [?]: 8 [1] , given: 4

Re: In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 02 May 2019, 02:20
1
This post received
KUDOS
Yes we dont know whether there are equal no of men or women or not. So the ans should be D.
Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 6584
Followers: 107

Kudos [?]: 1258 [0], given: 5973

CAT Tests
Re: In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 02 May 2019, 06:03
Expert's post
Sorry.

The answer is C.

Ask for a further explanation if those above are not clear :)

We are here to help you.

Best regards
_________________

Get the 2 FREE GREPrepclub Tests

1 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 1748
Followers: 58

Kudos [?]: 1668 [1] , given: 8

Re: In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 02 May 2019, 06:14
1
This post received
KUDOS
Expert's post
Carcass wrote:
In a group of 200 workers, 10% of the males smoke, and 49% of the females smoke.

Quantity A
Quantity B
Total number of workers who smoke
59


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.


This trick here is to recognize that this is a real world question, and that the number of smokers must be an INTEGER.
For example, we can't have 17.4 female smokers.

GIVEN: 49% of the females smoke
If F = the total number of female workers, then the number of female SMOKERS = 49% of F = (49/100)F
This tells us that F must be a multiple of 100, otherwise, the number of female SMOKERS will not be an INTEGER
For example, 49% of 100 = 49, 49% of 200 = 98, 49% of 300 = 147, etc
Conversely, 49% of 50 = 24.5, 49% of 75 = 36.75, 49% of 60 = 29.4. etc

Since there are 200 workers in TOTAL, the number of females must be either 100 or 200
However, since we're told that 10% of the males smoke, we know that there must be at least 10 male workers.
So, there can't be 200 female workers, which means there must be 100 female workers.

We now know that there are 100 female workers and 100 male workers.
49% of 100 = 49, so there are 49 female SMOKERS
10% of 100 = 10, so there are 10 male SMOKERS
TOTAL number of SMOKERS = 49 + 10 = 59

Answer: C

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com
Image
Sign up for my free GRE Question of the Day emails

Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 6584
Followers: 107

Kudos [?]: 1258 [0], given: 5973

CAT Tests
Re: In a group of 200 workers, 10% of the males smoke, and 49% o [#permalink] New post 02 May 2019, 08:02
Expert's post
Thank you, Sir, for the intervention

Regards
_________________

Get the 2 FREE GREPrepclub Tests

Re: In a group of 200 workers, 10% of the males smoke, and 49% o   [#permalink] 02 May 2019, 08:02
Display posts from previous: Sort by

In a group of 200 workers, 10% of the males smoke, and 49% o

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.