How many of the 120 cars in a certain dealer s inventory are : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 17 Jan 2017, 11:56

### 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

# How many of the 120 cars in a certain dealer s inventory are

Author Message
Senior Manager
Joined: 25 Nov 2006
Posts: 336
Schools: St Gallen, Cambridge, HEC Montreal
Followers: 3

Kudos [?]: 61 [0], given: 0

How many of the 120 cars in a certain dealer s inventory are [#permalink]

### Show Tags

06 Feb 2008, 07:40
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.

How many of the 120 cars in a certain dealer’s inventory are blue
sedans?

(1) Half of the sedans in the dealer’s inventory are blue.
(2) One-fifth of the cars in the dealer’s inventory are sedans.
CEO
Joined: 21 Jan 2007
Posts: 2756
Location: New York City
Followers: 11

Kudos [?]: 850 [0], given: 4

### Show Tags

06 Feb 2008, 07:48
lumone wrote:
How many of the 120 cars in a certain dealer’s inventory are blue
sedans?

(1) Half of the sedans in the dealer’s inventory are blue.
(2) One-fifth of the cars in the dealer’s inventory are sedans.

we have two conditions. blue. sedan.

we have a total of 120.

we want blue sedan/120

1) dont know how many sedans there are
could be 120 ==> 60 blue sedan
could be 2 ==> 1 blue sedan
INSUFF

INSUFF

together, 1/5 of 120 is 24. half of that is 12. SUFF
_________________

You tried your best and you failed miserably. The lesson is 'never try'. -Homer Simpson

Senior Manager
Joined: 25 Nov 2006
Posts: 336
Schools: St Gallen, Cambridge, HEC Montreal
Followers: 3

Kudos [?]: 61 [0], given: 0

### Show Tags

06 Feb 2008, 08:20
that was easy actually.

SVP
Joined: 28 Dec 2005
Posts: 1575
Followers: 3

Kudos [?]: 147 [0], given: 2

### Show Tags

06 Feb 2008, 15:53
C

stat 1 tells ys that half of all sedans are blue, but we dont know the split from 120 between sedans and non sedans. insuff.

stat 2 tells us that 24 of the 120 cars are sedans. nothing about how many are blue. insuff.

together, we know that there are 24 sedans from stat 2, and that half of these are blue, from stat 1. suff.
Director
Joined: 01 May 2007
Posts: 792
Followers: 1

Kudos [?]: 287 [0], given: 0

### Show Tags

06 Feb 2008, 15:57
We know there are 12 cars, but do we know there are 12 blue sedans?

----------------Blue-------Not Blue------Total
Sedan-----------X------------X-----------24
Not Sedan-------X------------X-----------96
Total------------12-----------108---------120

How do we know those 12 do not belong to the "Not Sedan" group?
Intern
Joined: 01 Aug 2007
Posts: 29
Followers: 0

Kudos [?]: 8 [0], given: 0

### Show Tags

07 Feb 2008, 18:39
I don't think that even if we take both statements together it is going to be sufficient though. The reason is that we don't know how much "overlap" there will be between cars that are blue and cars that are sedans.

Think of it this way:
Statement I: 120 cars, 60 are blue - let's just say those with numbers 1-60 are blue
Statement II: 24 are sedans - we can have cars with numbers 97-120 be sedan (in which case there will be no blue sedans), or we can have cars 1-24 be sedan (in which case there will be 24 blue sedans).

Conclusion: Insufficient info even with both statements
Senior Manager
Joined: 25 Nov 2006
Posts: 336
Schools: St Gallen, Cambridge, HEC Montreal
Followers: 3

Kudos [?]: 61 [0], given: 0

### Show Tags

12 Feb 2008, 05:25
aimecon, jimmy ->

120 cars in inventory

We know from statement (2) that there are 24 sedans (120/5=24).

Then, (1) states that half of the sedans are blue. (0.5*24= 12). There are 12 blue sedans.

C is correct.
Re: DS question   [#permalink] 12 Feb 2008, 05:25
Display posts from previous: Sort by