It is currently 28 Jun 2017, 09:37

# Live Now:

### 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

# GMAT Test M15 Master Thread - All discussions

Author Message
GMAT Club team member
Joined: 16 Mar 2009
Posts: 115
Location: Bologna, Italy

### Show Tags

13 May 2009, 00:45

Last edited by dzyubam on 26 Apr 2010, 03:11, edited 2 times in total.
q#7
Manager
Joined: 30 Jun 2004
Posts: 178
Location: Singapore

### Show Tags

23 Jun 2010, 05:09
Should not the answer be B.

x^2 - y^2 = (x+y)(x-y)

Statement 2 says that x+y is divisible by 8. In that case (x+y)(x-y) is also divisible by 8.
Manager
Joined: 30 Jun 2004
Posts: 178
Location: Singapore

### Show Tags

23 Jun 2010, 05:25
IMHO, the wordings "company's monthly sales" is not very clear. May be the test maker can make it more clear by using the term "revenue" or something else.
CEO
Joined: 15 Aug 2003
Posts: 3454

### Show Tags

30 Jun 2010, 00:36
tarun wrote:
IMHO, the wordings "company's monthly sales" is not very clear. May be the test maker can make it more clear by using the term "revenue" or something else.

I thought it was OK. What else would a company's monthly sales mean? profits? costs?
Intern
Joined: 09 Sep 2010
Posts: 12

### Show Tags

05 Oct 2010, 14:50
Is there an error in Q.19 ?

How can the closest vertex near (0,0) be (1,1) whereas it has been clearly mentioned in the question that (6,2) is the one of the vertices of the diagonal. Hence the straight line will have (0,2) as the other vertex. The distance of (0,2) from (0,0) will be 2.
Senior Manager
Status: Happy to join ROSS!
Joined: 29 Sep 2010
Posts: 276
Concentration: General Management, Strategy
Schools: Ross '14 (M)

### Show Tags

25 Mar 2011, 12:38
tarun wrote:
Should not the answer be B.

x^2 - y^2 = (x+y)(x-y)

Statement 2 says that x+y is divisible by 8. In that case (x+y)(x-y) is also divisible by 8.

Ok, the trick is: the number is divisible by X if after division there is integer left and no remainder.

In this question, answer 2 precludes the situation when x=7.77, y = 0.23, so
(x+y)(x-y)/8 = integer*7,52
thus we need answer 1 and answer 2 to make sure that after division by 8 we'll end up with multiplying two integers.
Manager
Affiliations: The Earth organization, India
Joined: 25 Dec 2010
Posts: 191
WE 1: SAP consultant-IT 2 years
WE 2: Entrepreneur-family business 2 years

### Show Tags

27 Jun 2011, 02:03
sandhyash wrote:
Is there an error in Q.19 ?

How can the closest vertex near (0,0) be (1,1) whereas it has been clearly mentioned in the question that (6,2) is the one of the vertices of the diagonal. Hence the straight line will have (0,2) as the other vertex. The distance of (0,2) from (0,0) will be 2.

Dude, (0,2) makes it a rectangle instead of square.

Q#19 coordinate-plane-90772.html
_________________

Cheers !!

Quant 47-Striving for 50
Verbal 34-Striving for 40

Re: GMAT Test M15 Master Thread - All discussions   [#permalink] 27 Jun 2011, 02:03
Similar topics Replies Last post
Similar
Topics:
2 GMAT Test M14 Master Thread - All discussions 6 16 Mar 2010, 22:00
GMAT Test M19 Master Thread - All discussions 0 12 May 2009, 23:34
GMAT Test M20 Master Thread - All discussions 0 12 May 2009, 22:12
GMAT Test M24 Master Thread - All discussions 0 12 May 2009, 21:49
2 GMAT Test M25 Master Thread - All discussions 6 07 Sep 2011, 14:44
Display posts from previous: Sort by

# GMAT Test M15 Master Thread - All discussions

Moderator: Bunuel

 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®.