Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 26 Jul 2016, 13:20

### 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

# The annual rent collected by a corporation from a certain

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Senior Manager
Joined: 14 Jul 2006
Posts: 281
Followers: 1

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

The annual rent collected by a corporation from a certain [#permalink]

### Show Tags

22 Aug 2006, 10:58
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

The annual rent collected by a corporation from a certain building was x percent more in 1998 than in 1997 and y percent less in 1999 than in 1998. Was the annual rent collected by the corporation from the building more in 1999 than in 1997?
(1) x > y
(2) (xy)/100 < x â€“ y

Senior Manager
Joined: 14 Aug 2006
Posts: 363
Followers: 1

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

### Show Tags

22 Aug 2006, 11:54
1997 1998 1999
100 100+x 100+x-y - (xy /100)
compare 100 and 100 + x -y -xy/100

(1) x > y
(2) (xy)/100 < x â€“ y

1) x>y so in 1999 is 100 + (+ve value) - xy/100. INSUFF
2) but we do not know if x>y INSUFF

Combined SUFF

so C?
Manager
Joined: 09 Jul 2006
Posts: 85
Location: India
Followers: 1

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

### Show Tags

22 Aug 2006, 12:12
gk3.14 wrote:
1997 1998 1999
100 100+x 100+x-y - (xy /100)
compare 100 and 100 + x -y -xy/100

(1) x > y
(2) (xy)/100 < x â€“ y

1) x>y so in 1999 is 100 + (+ve value) - xy/100. INSUFF
2) but we do not know if x>y INSUFF

Combined SUFF

so C?

x and y are both positive percentages. Thus from (2), x -y -xy/100 should be positive. Hence the rent increased.
Answer should be (B).
_________________

Cheers!
Prashrash.

Director
Joined: 06 May 2006
Posts: 780
Followers: 3

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

### Show Tags

22 Aug 2006, 12:30
1) Say x=20%; y=10%; then
(1999 rent) = 0.9 x 1.2 (1997 rent) = 1.08 (1997 rent) => Rent in '99 is more than rent in '97

Say x=50%; y=40%; then
(1999 rent) = 1.5 x 0.6 (1997 rent) = 0.90 (1997 rent) => Rent in '99 is less than rent in '97.

Hence not sufficient.

2) x-y > (xy)/100

Now, (1999 rent) = (1 + x/100)(1 - y/100) (1997 rent)
=> (1999 rent) = [1 + x/100 - y/100 - (xy)/10000](1997 rent)
=> (1999 rent) = [1 + 1/100{(x - y) - (xy)/100}](1997 rent)

Hence (1999 rent) = [1 + (some +ve value)](1997 rent)
Sufficient.

Senior Manager
Joined: 14 Jul 2006
Posts: 281
Followers: 1

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

### Show Tags

22 Aug 2006, 21:49
Hi guys OA is B thanks for the help
CEO
Joined: 20 Nov 2005
Posts: 2911
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 22

Kudos [?]: 217 [0], given: 0

### Show Tags

22 Aug 2006, 23:46
Straight B without calculations.
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

Senior Manager
Joined: 14 Jul 2006
Posts: 281
Followers: 1

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

### Show Tags

22 Aug 2006, 23:50
Hi PS_dahiya

Pls explain

thanks
CEO
Joined: 20 Nov 2005
Posts: 2911
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 22

Kudos [?]: 217 [0], given: 0

### Show Tags

23 Aug 2006, 00:07
apollo168 wrote:
Hi PS_dahiya

Pls explain

thanks

I mean to say paper calculations. I calculated in my mind.
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

Senior Manager
Joined: 14 Jul 2006
Posts: 281
Followers: 1

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

### Show Tags

23 Aug 2006, 00:12
Oh haha
[#permalink] 23 Aug 2006, 00:12
Display posts from previous: Sort by

# The annual rent collected by a corporation from a certain

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO 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®.