It is currently 25 Nov 2017, 02:36

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

Q29 of M13

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
Joined: 15 Nov 2009
Posts: 12

Kudos [?]: [0], given: 9

Q29 of M13 [#permalink]

Show Tags

New post 08 Feb 2010, 09:18
Can anyone explain the solution of this problem.

What was Silvia's income in December?

1. Silvia's income in December was $50 more than her average monthly income during the year.
2. Silvia's income in December was twice her average monthly income during the year.

(C) 2008 GMAT Club - m13#29

* Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient
* Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient
* BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
* EACH statement ALONE is sufficient
* Statements (1) and (2) TOGETHER are NOT sufficient

Kudos [?]: [0], given: 9

1 KUDOS received
Senior Manager
Senior Manager
User avatar
Joined: 28 Jun 2009
Posts: 440

Kudos [?]: 194 [1], given: 46

Location: United States (MA)
Re: Q29 of M13 [#permalink]

Show Tags

New post 08 Feb 2010, 16:29
1
This post received
KUDOS
Lets say Average income during the year is A
and income in December is D

If statement 1 is taken => D = A + 50 (1 alone not sufficient)

If statement 2 is taken => D = 2*A (2 alone is not sufficient)

If considered both, solving the equations,
we get A = 50 therefore D = 100

So the answer is "C"
* BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient

Kudos [?]: 194 [1], given: 46

Re: Q29 of M13   [#permalink] 08 Feb 2010, 16:29
Display posts from previous: Sort by

Q29 of M13

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

Moderator: Bunuel



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®.