Of the 25 cars sold at a certain dealership yesterday, some : GMAT Data Sufficiency (DS)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 16 Jan 2017, 08:20

### 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

# Of the 25 cars sold at a certain dealership yesterday, some

Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 31 Aug 2009
Posts: 419
Location: Sydney, Australia
Followers: 8

Kudos [?]: 275 [0], given: 20

Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

27 Sep 2009, 06:11
5
This post was
BOOKMARKED
00:00

Difficulty:

25% (medium)

Question Stats:

77% (01:50) correct 23% (00:45) wrong based on 384 sessions

### HideShow timer Statistics

Of the 25 cars sold at a certain dealership yesterday, some had automatic transmission and some had antilock brakes. How many of the cars had automatic transmission but not antilock brakes?

(1) All of the cars that had antilock brakes also had automatic transmission.

(2) 2 of the cars had neither automatic transmission, nor antilock brakes.
[Reveal] Spoiler: OA

Last edited by Bunuel on 20 Oct 2014, 01:19, edited 2 times in total.
Director
Joined: 25 Apr 2012
Posts: 728
Location: India
GPA: 3.21
Followers: 43

Kudos [?]: 690 [3] , given: 723

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

30 Dec 2013, 01:28
3
KUDOS
4
This post was
BOOKMARKED
yangsta8 wrote:
Of the 25 cars sold at a certain dealership yesterday, some had automatic transmission and some had anti-lock brakes. How many of the cars had a automatic transmission but not antilock brakes?

(1) all of the cars that had anti-lock brakes also had an automatic transmission
(2) 2 of the cars had neither automatic transmission nor anti-lock brakes

I got the answer right but it took me quite a while was wondering if anyone had a suggestion of using tables, venn diagram etc?

Attachment:

untitled.PNG [ 12.25 KiB | Viewed 8017 times ]

Look at the attachment above .

ALB: Anti Lock Brakes
NALB: No Anti Lock Brakes
AT: Automatic Transmission
NAT: No Automatic Transmission

We need to find the value of x ie.

With given data we can only find x+y =23 but not x.

_________________

“If you can't fly then run, if you can't run then walk, if you can't walk then crawl, but whatever you do you have to keep moving forward.”

Intern
Joined: 24 Sep 2009
Posts: 23
Followers: 5

Kudos [?]: 148 [1] , given: 2

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

16 Oct 2009, 17:44
1
KUDOS
Diagram:

An NoA T
......... ___________
Auto |___|___|___|
Man |___|___|___|
T........|___|___|___|

-I hope that came out. If not: You need to make a box with 9 square so there are 3 rows, 3 columns. Label the columns as Antilock, No Antilock, and Total... and the rows at Automatic, Manual, and Total.

-In the bottom right cube, fill in the total of 25 cars. This was given to you. Then, plug in numbers, and sum columns and rows. Here is how mine came out for this problem while looking to see if both statements together can work.

Row 1: 23-x | x | 23
Row 2: 0 | 2 | 2
Row 3: 23-x | 2+x | 25
Senior Manager
Affiliations: PMP
Joined: 13 Oct 2009
Posts: 312
Followers: 4

Kudos [?]: 160 [1] , given: 37

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

16 Oct 2009, 18:41
1
KUDOS
we prolly dont need a diagram for this, reasoning would be easier than trying to draw a diagram - IMO
_________________

Thanks, Sri
-------------------------------
keep uppp...ing the tempo...

Press +1 Kudos, if you think my post gave u a tiny tip

Math Expert
Joined: 02 Sep 2009
Posts: 36509
Followers: 7064

Kudos [?]: 92883 [1] , given: 10528

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

20 Oct 2014, 01:24
1
KUDOS
Expert's post
5
This post was
BOOKMARKED
angelfire213 wrote:
Of the 25 cars sold at a certain dealership yesterday, some had automatic transmission and some had antilock brakes. How many of the cars had automatic transmission but not antilock brakes?

(1) All of the cars that had antilock brakes also had automatic transmission.

(2) 2 of the cars had neither automatic transmission, nor antilock brakes.

sigh, lots of questions today.

Can someone explain this to me.
If
1. ALL the cars that had antilock also had automatic trans.. and
2. 2 of the cars had neither auto nor anti lock

Does that not mean that 23 cars had anti-lock in which case 23 cars also had auto...and thus filling in all the boxes, this would be solvable?

No. All of the cars that had antilock brakes also had automatic transmission means that 0 cars have antilock brakes but no automatic transmission. Check the matric below:
Attachment:

Untitled.png [ 5.51 KiB | Viewed 6344 times ]
We need to find the value of yellow box, which is not possible from the info we have.
_________________
Verbal Forum Moderator
Joined: 02 Aug 2009
Posts: 4218
Followers: 325

Kudos [?]: 3441 [0], given: 100

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

27 Sep 2009, 07:03
E
let A=all of the cars that had an automatic transmission..
B=all of the cars that had anti-lock brakes
SI just tells us that B is a part of A...not suffi
SII tells us AUB, which is set A itself is 23..not suffi
combining two... still not sufficient as we require A-B
_________________

Absolute modulus :http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

Senior Manager
Joined: 31 Aug 2009
Posts: 419
Location: Sydney, Australia
Followers: 8

Kudos [?]: 275 [0], given: 20

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

27 Sep 2009, 14:46
Thanks chetan2u was easier once I used a venn diagram too

Posted from my mobile device
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 13412
Followers: 575

Kudos [?]: 163 [0], given: 0

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

29 Dec 2013, 04:48
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.
_________________
Current Student
Joined: 26 Aug 2014
Posts: 827
Concentration: Marketing
GMAT 1: 680 Q V
GPA: 3.4
Followers: 7

Kudos [?]: 159 [0], given: 98

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

19 Oct 2014, 15:21
sigh, lots of questions today.

Can someone explain this to me.
If
1. ALL the cars that had antilock also had automatic trans.. and
2. 2 of the cars had neither auto nor anti lock

Does that not mean that 23 cars had anti-lock in which case 23 cars also had auto...and thus filling in all the boxes, this would be solvable?
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 13412
Followers: 575

Kudos [?]: 163 [0], given: 0

Re: Of the 25 cars sold at a certain dealership yesterday, some [#permalink]

### Show Tags

13 Dec 2015, 21:57
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.
_________________
Re: Of the 25 cars sold at a certain dealership yesterday, some   [#permalink] 13 Dec 2015, 21:57
Similar topics Replies Last post
Similar
Topics:
3 At a certain auto dealership, 500 cars were sold last week. 6 27 Jul 2016, 04:04
19 A certain car rental agency rented 25 vehicles yesterday, each of whic 10 17 Apr 2015, 03:55
9 A certain dealership has a number of cars to be sold by its 9 27 Dec 2013, 04:37
23 Yesterday, an automobile dealership sold exactly 15 vehicles 6 23 Dec 2013, 10:11
3 Of the 25 cars sold at a car dealership, some had auto 5 07 Sep 2010, 13:08
Display posts from previous: Sort by

# Of the 25 cars sold at a certain dealership yesterday, some

 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®.