It is currently 17 Oct 2017, 03:10

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Of the 230 single-family homes built in City X last year.

Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 29 Jan 2011
Posts: 348

Kudos [?]: 244 [0], given: 87

Of the 230 single-family homes built in City X last year. [#permalink]

### Show Tags

09 Jul 2011, 20:04
2
This post was
BOOKMARKED
00:00

Difficulty:

25% (medium)

Question Stats:

74% (00:47) correct 26% (00:51) wrong based on 174 sessions

### HideShow timer Statistics

Of the 230 single-family homes built in City X last year. how many were occupied at the end of the year?

(1) Of all single-family homes in City X, 90 percent were occupied at the end of last year.
(2) A total of 7,200 single-family homes in City X were occupied at the end of last year.

[Reveal] Spoiler: My doubt
If we combine 1 and 2 do we get total 7200 homes were occupied which is 90% of total so total is 90/100 X = 7200 .... x = 7200 *100 /90 = 8000? Is this total no of houses that are in city X at the end of last yr 8000?
[Reveal] Spoiler: OA

Kudos [?]: 244 [0], given: 87

Manager
Joined: 04 Apr 2010
Posts: 159

Kudos [?]: 222 [1], given: 31

### Show Tags

09 Jul 2011, 20:39
1
KUDOS
The value of X that you calculated gives you all single families homes in City X. But the question ask you the number of single family homes built at the end of the last year out of the particular 230 single families homes that were built in city X.
Remember- out of the particular 230 homes - how many were occupied at the end of the last year?

_________________

Consider me giving KUDOS, if you find my post helpful.
If at first you don't succeed, you're running about average. ~Anonymous

Kudos [?]: 222 [1], given: 31

VP
Joined: 24 Jul 2011
Posts: 1347

Kudos [?]: 641 [0], given: 20

GMAT 1: 780 Q51 V48
GRE 1: 1540 Q800 V740

### Show Tags

30 Jul 2011, 03:17
The question asks - of the 230 single-family homes built in city X last year how many were occupied at the end of the year?

Looking at both the choices, we see right away (without any calculations) that the options only give us information about the occupancy of single-family homes in city X. None of the options talks about the occupancy of the newly built homes. Therefore even by combining both options we cannot reach the answer.

_________________

GyanOne | Top MBA Rankings and MBA Admissions Blog

Premium MBA Essay Review|Best MBA Interview Preparation|Exclusive GMAT coaching

Get a FREE Detailed MBA Profile Evaluation | Call us now +91 98998 31738

Kudos [?]: 641 [0], given: 20

Senior Manager
Joined: 19 Oct 2010
Posts: 252

Kudos [?]: 90 [0], given: 27

Location: India
GMAT 1: 560 Q36 V31
GPA: 3

### Show Tags

13 Aug 2011, 08:32

GyanOne's explanation is good.
_________________

petrifiedbutstanding

Kudos [?]: 90 [0], given: 27

Intern
Affiliations: IEEE, IAB
Joined: 09 Aug 2011
Posts: 15

Kudos [?]: 7 [0], given: 2

Mustafa: Golam

### Show Tags

09 Sep 2011, 22:48
+E, since both number of single family homes in the city.
_________________

*´¨)
¸.•´¸.•*´¨) ¸.•*¨)
(¸.•´ (¸.•` *Mustafa Golam,'.'`,.

Kudos [?]: 7 [0], given: 2

Intern
Joined: 13 Oct 2010
Posts: 20

Kudos [?]: 26 [1], given: 0

### Show Tags

16 Oct 2011, 21:48
1
KUDOS
Actually , Sentence correction skills would help us out here -if some of us havent understood the question part yet.

The question says about "of THE 230 single family homes- here, the determiner is THE and qualifies the noun 230 single family homes. So, the question is asking about only those 230 single family homes and thats all.
But both statements (St1 & St2) are giving info only abt total number of SF homes built last year. None of them are talking abt THE 230 single-family homes. ANS: E

Kudos [?]: 26 [1], given: 0

Manager
Status: Next engagement on Nov-19-2011
Joined: 12 Jan 2011
Posts: 79

Kudos [?]: 28 [0], given: 5

Location: New Delhi, India
Schools: IIM, ISB, & XLRI
WE 1: B.Tech (Information Technology)

### Show Tags

17 Oct 2011, 10:53
My answer is E as well.

Though statement 1 is lucarative and tends to create a trap of assuming 90% of 230. However, one way to overcome that trap is to read statement 2
_________________

Preparation for final battel:
GMAT PREP-1 750 Q50 V41 - Oct 16 2011
GMAT PREP-2 710 Q50 V36 - Oct 22 2011 ==> Scored 50 in Quant second time in a row
MGMAT---- -1 560 Q28 V39 - Oct 29 2011 ==> Left Quant half done and continued with Verbal. Happy to see Q39

My ongoing plan: http://gmatclub.com/forum/550-to-630-need-more-to-achieve-my-dream-121613.html#p989311

Appreciate by kudos !!

Kudos [?]: 28 [0], given: 5

Director
Joined: 28 Jun 2011
Posts: 879

Kudos [?]: 244 [0], given: 57

### Show Tags

17 Oct 2011, 13:31

Kudos [?]: 244 [0], given: 57

Director
Joined: 03 Aug 2012
Posts: 899

Kudos [?]: 884 [0], given: 322

Concentration: General Management, General Management
GMAT 1: 630 Q47 V29
GMAT 2: 680 Q50 V32
GPA: 3.7
WE: Information Technology (Investment Banking)
Re: Of the 230 single-family homes built in City X last year. [#permalink]

### Show Tags

23 Mar 2013, 11:24
OF THE 230 Single HOMES BUILT in city X last year,How many were occupied at the end of the year?

we have to calculate (Number of homes OF the 230 that were occupied at the EOY)

(1).

All Single Family Homes = X + 230
where X = OLD Single Family Homes that were built before LAST YEAR

So, statement says

0.9(X + 230) were OCCUPIED at EOY

=> 0.9X + 0.9*230 = > 90% of (230) were OCCUPIED LAST YEAR.

SUFFICIENT

Rgds,
TGC
_________________

Rgds,
TGC!
_____________________________________________________________________
I Assisted You => KUDOS Please
_____________________________________________________________________________

Kudos [?]: 884 [0], given: 322

Intern
Status: Attending Duke in May!
Joined: 08 Jan 2013
Posts: 29

Kudos [?]: 41 [0], given: 18

Location: United States (NC)
GMAT 1: 640 Q42 V35
Re: Of the 230 single-family homes built in City X last year. [#permalink]

### Show Tags

01 Apr 2013, 20:29
targetgmatchotu wrote:
OF THE 230 Single HOMES BUILT in city X last year,How many were occupied at the end of the year?

we have to calculate (Number of homes OF the 230 that were occupied at the EOY)

(1).

All Single Family Homes = X + 230
where X = OLD Single Family Homes that were built before LAST YEAR

So, statement says

0.9(X + 230) were OCCUPIED at EOY

=> 0.9X + 0.9*230 = > 90% of (230) were OCCUPIED LAST YEAR.

SUFFICIENT

Rgds,
TGC

From the question we get:

Total Homes in City X = [Homes built before last year] + 230

We are asked how many of the 230 homes were occupied.

So we also have equation:

230 = [Occupied Homes Built last year] + [Unoccupied Homes Built last year]

Question is, Occupied Homes BUILT LAST YEAR = ?

Statement (1) gives us an entirely new equation that adds even more unknown variables:

Total Homes in City X = Total Occupied(.9) + Total Unoccupied(.1)

We can't do anything with this. Insufficient.

Statement (2) gives us the exact same information from Statement 1 in a different form

Total Homes In City X = 7200 + Total Unoccupied

Insufficient.

Even combining these two equations it is impossible to get any information on the homes built last year to answer the question, let alone which ones were occupied. So (C) is also insufficient.

Kudos [?]: 41 [0], given: 18

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 16764

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

Re: Of the 230 single-family homes built in City X last year. [#permalink]

### Show Tags

07 Sep 2015, 23:15
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.
_________________

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

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 16764

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

Re: Of the 230 single-family homes built in City X last year. [#permalink]

### Show Tags

27 May 2017, 08:49
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.
_________________

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

Intern
Joined: 16 Sep 2017
Posts: 8

Kudos [?]: 1 [0], given: 1

Re: Of the 230 single-family homes built in City X last year. [#permalink]

### Show Tags

19 Sep 2017, 08:47
TGC wrote:
OF THE 230 Single HOMES BUILT in city X last year,How many were occupied at the end of the year?

we have to calculate (Number of homes OF the 230 that were occupied at the EOY)

(1).

All Single Family Homes = X + 230
where X = OLD Single Family Homes that were built before LAST YEAR

So, statement says

0.9(X + 230) were OCCUPIED at EOY

=> 0.9X + 0.9*230 = > 90% of (230) were OCCUPIED LAST YEAR.

SUFFICIENT

Rgds,
TGC

If you had 20 candies and I gave you 10 candies more.

Then end of week 1 only 10% of candies are left. . That means you ate 90% . Which mean only 3 candies are left.

Now are those 3 from initial 20 or are those 3 from newly bought ones?

Does this solve the question you raised?

Posted from my mobile device

Kudos [?]: 1 [0], given: 1

Re: Of the 230 single-family homes built in City X last year.   [#permalink] 19 Sep 2017, 08:47
Display posts from previous: Sort by