It is currently 18 Oct 2017, 08:10

Live Now:

GMAT Verbal Live on YouTube: Join Now!


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

Events & Promotions in June
Open Detailed Calendar

in a certain city 80% of the houses have cables and 60% have VCR. what

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
1 KUDOS received
Manager
Manager
avatar
Joined: 16 May 2011
Posts: 203

Kudos [?]: 98 [1], given: 37

Concentration: Finance, Real Estate
GMAT Date: 12-27-2011
WE: Law (Law)
GMAT ToolKit User
in a certain city 80% of the houses have cables and 60% have VCR. what [#permalink]

Show Tags

New post 13 Jun 2011, 04:47
1
This post received
KUDOS
1
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

67% (01:48) correct 33% (01:21) wrong based on 21 sessions

HideShow timer Statistics

in a certain city 80% of the houses have cables and 60% have VCR. what is the range of houses that have both cables and a VCR, if there are 150,000 houses:(IN THOUSENDS)

1. 30-60
2. 30-90
3. 60-90
4. 60-150
5. 90-150

I used a table solving for NO CABLES/NO VCR=0 and then VCR/NO CABLES=0 to recieve the anser which seems correct.

is som1 can suggest a quicker method?

kind regards
[Reveal] Spoiler: OA

Kudos [?]: 98 [1], given: 37

SVP
SVP
avatar
Joined: 16 Nov 2010
Posts: 1598

Kudos [?]: 592 [0], given: 36

Location: United States (IN)
Concentration: Strategy, Technology
Premium Member Reviews Badge
Re: in a certain city 80% of the houses have cables and 60% have VCR. what [#permalink]

Show Tags

New post 13 Jun 2011, 04:58
1
This post was
BOOKMARKED
The highest range can be the # of people who have both Cables and VCR, which means 60% of people have cables, and VCR too.

So 60% of people = 60/100 * 150000 = 90000

Then again, the least overlap can be like :

80% + 60% - 100% = 40%

40% of 150000 = 40/100 * 150000 = 60000

So the range = 60000 - 90000

So Answer - C
Attachments

Sets.png
Sets.png [ 12.76 KiB | Viewed 1596 times ]


_________________

Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)

GMAT Club Premium Membership - big benefits and savings

Kudos [?]: 592 [0], given: 36

Current Student
avatar
Joined: 26 May 2005
Posts: 555

Kudos [?]: 238 [0], given: 13

Re: in a certain city 80% of the houses have cables and 60% have VCR. what [#permalink]

Show Tags

New post 13 Jun 2011, 05:20
dimri10 wrote:
in a certain city 80% of the houses have cables and 60% have VCR. what is the range of houses that have both cables and a VCR, if there are 150,000 houses:(IN THOUSENDS)

1. 30-60
2. 30-90
3. 60-90
4. 60-150
5. 90-150

I used a table solving for NO CABLES/NO VCR=0 and then VCR/NO CABLES=0 to recieve the anser which seems correct.

is som1 can suggest a quicker method?

kind regards


The range is 40% - 60% hence
60k - 90K
Attachments

Set.jpg
Set.jpg [ 22.51 KiB | Viewed 1587 times ]

Kudos [?]: 238 [0], given: 13

Manager
Manager
avatar
Joined: 16 May 2011
Posts: 203

Kudos [?]: 98 [0], given: 37

Concentration: Finance, Real Estate
GMAT Date: 12-27-2011
WE: Law (Law)
GMAT ToolKit User
Re: in a certain city 80% of the houses have cables and 60% have VCR. what [#permalink]

Show Tags

New post 13 Jun 2011, 05:33
subhashghosh wrote:
The highest range can be the # of people who have both Cables and VCR, which means 60% of people have cables, and VCR too.

So 60% of people = 60/100 * 150000 = 90000

Then again, the least overlap can be like :

80% + 60% - 100% = 40%

40% of 150000 = 40/100 * 150000 = 60000

So the range = 60000 - 90000

So Answer - C



thank's great reply.
but in the same subject:

is there a way to deal with sets without Venn diagrams?

Kudos [?]: 98 [0], given: 37

1 KUDOS received
SVP
SVP
avatar
Joined: 16 Nov 2010
Posts: 1598

Kudos [?]: 592 [1], given: 36

Location: United States (IN)
Concentration: Strategy, Technology
Premium Member Reviews Badge
Re: in a certain city 80% of the houses have cables and 60% have VCR. what [#permalink]

Show Tags

New post 13 Jun 2011, 05:37
1
This post received
KUDOS
Well, to my mind, Venn diagrams make visualization easier. I think Venn diagrams are great, you can try the how to draw Venn diagrams by Whiplash, I think it's really good stuff.

Sometimes, double matrix is also good, especially for 2 sets, but it's really based on individual comfort level.
_________________

Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)

GMAT Club Premium Membership - big benefits and savings

Kudos [?]: 592 [1], given: 36

Manager
Manager
avatar
Joined: 16 May 2011
Posts: 203

Kudos [?]: 98 [0], given: 37

Concentration: Finance, Real Estate
GMAT Date: 12-27-2011
WE: Law (Law)
GMAT ToolKit User
Re: in a certain city 80% of the houses have cables and 60% have VCR. what [#permalink]

Show Tags

New post 13 Jun 2011, 06:14
well i tried whiplash's way. it's too long in comparison to:

150=58+88+53-both-2*all.

Kudos [?]: 98 [0], given: 37

VP
VP
avatar
Status: There is always something new !!
Affiliations: PMI,QAI Global,eXampleCG
Joined: 08 May 2009
Posts: 1285

Kudos [?]: 281 [0], given: 10

Re: in a certain city 80% of the houses have cables and 60% have VCR. what [#permalink]

Show Tags

New post 13 Jun 2011, 23:04
40 - 60% giving 60-90.
_________________

Visit -- http://www.sustainable-sphere.com/
Promote Green Business,Sustainable Living and Green Earth !!

Kudos [?]: 281 [0], given: 10

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 16707

Kudos [?]: 273 [0], given: 0

Premium Member
Re: in a certain city 80% of the houses have cables and 60% have VCR. what [#permalink]

Show Tags

New post 06 May 2016, 10:34
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.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Kudos [?]: 273 [0], given: 0

Re: in a certain city 80% of the houses have cables and 60% have VCR. what   [#permalink] 06 May 2016, 10:34
Display posts from previous: Sort by

in a certain city 80% of the houses have cables and 60% have VCR. what

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


GMAT Club MBA Forum Home| About| Terms and Conditions| 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®.