In a class of 30 students, 17 students study Chinese and r : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 16 Jan 2017, 05:52

### 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

# In a class of 30 students, 17 students study Chinese and r

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
CEO
Joined: 15 Aug 2003
Posts: 3460
Followers: 67

Kudos [?]: 861 [0], given: 781

In a class of 30 students, 17 students study Chinese and r [#permalink]

### Show Tags

11 Sep 2003, 03:55
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

### HideShow timer Statistics

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

3.In a class of 30 students, 17 students study Chinese and r students study Japanese. Every student studies either Chinese or Japaneseor both. How many students study both Chinese & Japanese?

(1) r=14

(2) 13 students take only Japanese
SVP
Joined: 30 Oct 2003
Posts: 1793
Location: NewJersey USA
Followers: 5

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

### Show Tags

19 Jan 2004, 10:00
D I guess

T = C + J - Both
So Both = C+J-T

From A)
Both = 17+14-30 = 1

From B)
14 study only Japanese so 17 mist either study
Both J & C or just C
So we know how many Chinese.

Sorry I think it is just A. Since the stem is asking for Both C and J and not just C.
Intern
Joined: 05 Dec 2003
Posts: 47
Location: LA
Followers: 0

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

### Show Tags

19 Jan 2004, 17:34
3.In a class of 30 students, 17 students study Chinese and r students study Japanese. Every student studies either Chinese or Japaneseor both. How many students study both Chinese & Japanese?

(1) r=14

(2) 13 students take only Japanese

I pick D.

You know the following
Total students = 30
Students study Chinese = 17 (including ones enrolled in Japanese)
There are no students that study neither Jap or Chinese

1)
Total = Chinese + Japanese - Both
30 = 17 + 14 - Both ---> Both = 1 Sufficient

2)
Doesn't give you enough information. Doubt yourself.. see below
Let's say that Both = 0, then C+J = 17+13 = 30
Or Both can = 1, then C+J-Both = 17+14-1=30 (You add 13+1 to include the student who studies J and C to the total J count)
Answer two is insufficient
Intern
Joined: 05 Dec 2003
Posts: 47
Location: LA
Followers: 0

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

### Show Tags

19 Jan 2004, 17:35
I mean.. I pick A, see my explanation above
Senior Manager
Joined: 23 Sep 2003
Posts: 293
Location: US
Followers: 1

Kudos [?]: 3 [0], given: 0

### Show Tags

20 Jan 2004, 08:12
I say D.

Looking at A alone, 1 student studies both languages.

Looking at B, no student studies both.

The question doesn't say that a student MUST study both languages.
Intern
Joined: 21 Jan 2004
Posts: 2
Location: Australia
Followers: 0

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

### Show Tags

21 Jan 2004, 15:24
I would say A

I agree with ndidi204 's reasoning
_________________

Don't die wondering

GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4302
Followers: 40

Kudos [?]: 429 [0], given: 0

### Show Tags

30 Oct 2004, 20:25
Good question. A it is
Attachments

GMATClub2.jpg [ 13.84 KiB | Viewed 654 times ]

_________________

Best Regards,

Paul

Intern
Joined: 26 Oct 2004
Posts: 4
Followers: 0

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

### Show Tags

31 Oct 2004, 23:05
D would have been the anwer had it been 17 students study chinese only...just like 13 study japanese....therefore 0 student study both...
31 Oct 2004, 23:05
Display posts from previous: Sort by

# In a class of 30 students, 17 students study Chinese and r

 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®.