|
Author |
Message |
|
TAGS:
|
|
|
CEO
Joined: 15 Aug 2003
Posts: 3550
Followers: 55
Kudos [?]:
626
[0], given: 781
|
In a class of 30 students, 17 students study Chinese and r [#permalink]
 11 Sep 2003, 04:55
Question Stats:
0% (00:00) correct
 0% (00:00) wrong based on 0 sessions
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: 1963
Location: NewJersey USA
Followers: 3
Kudos [?]:
25
[0], given: 0
|
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.
|
|
|
|
|
|
Manager
Joined: 05 Dec 2003
Posts: 50
Location: LA
Followers: 0
Kudos [?]:
0
[0], given: 0
|
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
|
|
|
|
|
|
Manager
Joined: 05 Dec 2003
Posts: 50
Location: LA
Followers: 0
Kudos [?]:
0
[0], given: 0
|
I mean.. I pick A, see my explanation above
|
|
|
|
|
|
Senior Manager
Joined: 23 Sep 2003
Posts: 327
Location: US
Followers: 1
Kudos [?]:
0
[0], given: 0
|
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
|
I would say A
I agree with ndidi204 's reasoning
_________________
Don't die wondering
|
|
|
|
|
|
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4441
Followers: 10
Kudos [?]:
81
[0], given: 0
|
Good question. A it is
Attachments
GMATClub2.jpg [ 13.84 KiB | Viewed 241 times ]
_________________
Best Regards,
Paul
|
|
|
|
|
|
Intern
Joined: 26 Oct 2004
Posts: 4
Followers: 0
Kudos [?]:
0
[0], given: 0
|
D would have been the anwer had it been 17 students study chinese only...just like 13 study japanese....therefore 0 student study both...
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Similar topics |
Author |
Replies |
Last post |
|
Similar
Topics:
|
 |
|
|
In a class of 30 students, 17 students study Chinese, and r
|
maaverick |
5 |
19 Mar 2005, 13:54 |
|
|
|
|
In a class of 30 students, 17 students study Chinese, and r
|
appuvar |
3 |
28 Oct 2007, 14:39 |
|
|
|
 |
In a class of 30 students, 17 students study Chinese, and r
|
aliensoybean |
8 |
18 Nov 2007, 22:13 |
|
|
|
|
In a class of 30 students, there are 17 girls and 13 boys.
|
prasannar |
2 |
28 Jun 2008, 01:06 |
|
|
|
|
In a class of 30 students, 17 students study Chinese, and r
|
rxs0005 |
3 |
09 Sep 2010, 07:52 |
|
|
|
|
|
|
close
