NEW HERE? LEARN MORE
closeclose
Last visit was: 25 Apr 2024, 12:39 It is currently 25 Apr 2024, 12:39
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

Some people subscribe to newpaper A and of these 1/5 of the

User avatar
TS
Intern
Intern
Joined: 11 Dec 2003
Posts: 33
Own Kudos [?]: 81 [0]
Given Kudos: 0
Location: IN
Send PM
Some people subscribe to newpaper A and of these 1/5 of the [#permalink] New post   21 Jun 2005, 13:49
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Hide Show timer Statistics
Some people subscribe to newpaper A and of these 1/5 of the people
also subscribe to paper B. Some people subscribe to paper B and of
these 1/4 of the people also subscibe to paper A. Ratio of people
who subscribed paper B to that of the total number of people?
A) 1/2 B)2/3 C) 3 D) 4 E) 5



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
avatar
mandy
Manager
Manager
Joined: 30 May 2005
Posts: 151
Own Kudos [?]: 205 [0]
Given Kudos: 0
Send PM
Re: Some people subscribe to newpaper A and of these 1/5 of the [#permalink] New post   21 Jun 2005, 15:59
sparky wrote:
A/5 = B/4

A= B* 5/4

B/(A+B -AB) = 1/2, A


:) Please Sparky can you explain a little more thanks a lot

i understood that A/5=B/4 AND A= B* 5/4


come from this part:"Some people subscribe to newpaper A and of these 1/5 of the people
also subscribe to paper B. Some people subscribe to paper B and of
these 1/4 of the people also subscibe to paper A"

but not the remaining
thanks ,
User avatar
TS
Intern
Intern
Joined: 11 Dec 2003
Posts: 33
Own Kudos [?]: 81 [0]
Given Kudos: 0
Location: IN
Send PM
Re: Some people subscribe to newpaper A and of these 1/5 of the [#permalink] New post   21 Jun 2005, 19:24
Sparky or anyone else I did not get it. Would you be kind enough to explain it.
Thanks.
User avatar
AJB77
Manager
Manager
Joined: 30 May 2005
Posts: 236
Own Kudos [?]: 51 [0]
Given Kudos: 0
Send PM
Re: Some people subscribe to newpaper A and of these 1/5 of the [#permalink] New post   21 Jun 2005, 19:33
It may be easier to assume numbers.

Assume 20 people subscribe to Newspaper A (20 is LCM of 4 and 5)

Of these 20/5 = 4 people subscribe to Newspaper B.

We know that these 4 people represent 1/4 of the people who subscribe to Newspaper B, so total of 4/(1/4) = 16 people subscribe to Newspaper B.

Total number of people = (Those who subscribe to A )+ (Those who subscribe to B) - (Those who subscribe to both) = 20 + 16 - 4 = 32

Ratio needed = 16/32 = 1/2

Does this help? Sometimes it may be easier to plug in numbers, since when you talk of ratios, they must be true for any +ve integer.
avatar
mandy
Manager
Manager
Joined: 30 May 2005
Posts: 151
Own Kudos [?]: 205 [1]
Given Kudos: 0
Send PM
Re: Some people subscribe to newpaper A and of these 1/5 of the [#permalink] New post   22 Jun 2005, 02:53
1
Kudos
AJB77 wrote:
It may be easier to assume numbers.

Assume 20 people subscribe to Newspaper A (20 is LCM of 4 and 5)

Of these 20/5 = 4 people subscribe to Newspaper B.

We know that these 4 people represent 1/4 of the people who subscribe to Newspaper B, so total of 4/(1/4) = 16 people subscribe to Newspaper B.

Total number of people = (Those who subscribe to A )+ (Those who subscribe to B) - (Those who subscribe to both) = 20 + 16 - 4 = 32

Ratio needed = 16/32 = 1/2

Does this help? Sometimes it may be easier to plug in numbers, since when you talk of ratios, they must be true for any +ve integer.



:-D thanks AJB77 yes it does
I Were suspecting some set matters and i first try a venn diagram I could not see what was common to both i picked A=40 AND B= 2O
So if I understand well what A and B have in common
is 1/5 of A and 1/4of B

thanks

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

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. 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.
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32677
Own Kudos [?]: 822 [0]
Given Kudos: 0
Send PM
Re: Some people subscribe to newpaper A and of these 1/5 of the [#permalink] New post   20 Sep 2019, 11:31
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
GMAT Club Bot
gmatclubot
Re: Some people subscribe to newpaper A and of these 1/5 of the [#permalink]
20 Sep 2019, 11:31
Moderators:
Bunuel
Math Expert
92914 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions