It is currently 27 Jun 2017, 10:46

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, 20 students speak spanish, 15 speak french and

Author Message
Intern
Joined: 01 Oct 2006
Posts: 2
In a class, 20 students speak spanish, 15 speak french and [#permalink]

Show Tags

17 Dec 2006, 15:22
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.

In a class, 20 students speak spanish, 15 speak french and 15 speak chinese. how many students are in the class?
1. exactly 30% of the students in the class speak french
2. all of the students speak english and none speaks more than two languages.

any takers?
Intern
Joined: 09 Dec 2006
Posts: 4

Show Tags

17 Dec 2006, 15:42
statement 2 helps us understanding that nobody is speaking spanish and french or french or chinese, or ...

statement 1 is pretty straightforward and we can work out the number of students from this 15/.3 = 50

Answer is C, we need both statements.

hope this works.
Senior Manager
Joined: 08 Jun 2006
Posts: 335
Location: Washington DC

Show Tags

17 Dec 2006, 17:29
going for D

1) straightforwardm, just work out the number of students from this 15/.3 = 50
2) There is no overlap among french, chinese and spanish speakers so total 15 + 15 + 20 = 50
Senior Manager
Joined: 14 Aug 2006
Posts: 363

Show Tags

17 Dec 2006, 18:04
I would think A

2) None speak more than 2 languages implies that some may speak english and spanish.. so we don't know if there is an overlap
Intern
Joined: 14 Jul 2005
Posts: 44
Location: California
Re: DS number of students in class [#permalink]

Show Tags

17 Dec 2006, 18:25
n_sathya wrote:
In a class, 20 students speak spanish, 15 speak french and 15 speak chinese. how many students are in the class?
1. exactly 30% of the students in the class speak french
2. all of the students speak english and none speaks more than two languages.

any takers?

I think its A.
From B None speak more than 2 languages, does not mean that there are no students who speak 1 language. ie there can be x students who speak only english. therefore B is not suff.
Intern
Joined: 17 Dec 2006
Posts: 22
Re: DS number of students in class [#permalink]

Show Tags

17 Dec 2006, 18:50
n_sathya wrote:
In a class, 20 students speak spanish, 15 speak french and 15 speak chinese. how many students are in the class?
1. exactly 30% of the students in the class speak french
2. all of the students speak english and none speaks more than two languages.

any takers?

I would go for A as well.

1. exactly 30% speak french => 30%T = F => T can be found.
2. all of the students speak english and none speaks more than two languages.

So some students may speak "Only" English, French etc. Since its not given how many speak just one of these languages, the total number cannot be found. so this is not sufficient
VP
Joined: 21 Mar 2006
Posts: 1127
Location: Bangalore

Show Tags

18 Dec 2006, 03:55
anindyat wrote:
going for D

1) straightforwardm, just work out the number of students from this 15/.3 = 50
2) There is no overlap among french, chinese and spanish speakers so total 15 + 15 + 20 = 50

AgreeD

1. All students speak english.
2. No student speaks more than two languages.

That means the guys speaking French speak French & English. The same holds true for chinese and spanish speakers as well. Note that there cannot be any overlap between french & chinese, chinese & spanish, etc due to 2.

So total = 20 + 15 + 15 = 50
Manager
Joined: 18 Nov 2006
Posts: 123

Show Tags

18 Dec 2006, 17:05
In a class, 20 students speak spanish, 15 speak french and 15 speak chinese. how many students are in the class?
1. exactly 30% of the students in the class speak french
2. all of the students speak english and none speaks more than two languages.
-------------------------------------------------------------------

A..

1) 30% is 15 -> 100% is 50 suffi.
2) here, there can be some x students who speak greek or latin or 'timepass' language(s) and (of course english too as given)..no where it is mentioned from stem and 2) that students speak only sp or fr or ch & eng.
as we dont know this x , so, 2) is insuffi..

I bet my 5 cents on this..
Director
Joined: 12 Jun 2006
Posts: 532

Show Tags

18 Dec 2006, 18:06
Quote:
In a class, 20 students speak spanish, 15 speak french and 15 speak chinese. how many students are in the class?
1. exactly 30% of the students in the class speak french
2. all of the students speak english and none speaks more than two languages.

I say D.

If everyone speaks English and no one speaks more than 2 languages then we simply add 20, 15 and 15 to find the # of students in the class, 20 students speak spanish and english, 15 speak french and english and 15 speak chinese and english

if .3 = 15 then 1 = 50
Senior Manager
Joined: 20 Feb 2006
Posts: 373

Show Tags

18 Dec 2006, 18:52
ggarr wrote:
Quote:
In a class, 20 students speak spanish, 15 speak french and 15 speak chinese. how many students are in the class?
1. exactly 30% of the students in the class speak french
2. all of the students speak english and none speaks more than two languages.

I say D.

If everyone speaks English and no one speaks more than 2 languages then we simply add 20, 15 and 15 to find the # of students in the class, 20 students speak spanish and english, 15 speak french and english and 15 speak chinese and english

if .3 = 15 then 1 = 50

D for same reasons
VP
Joined: 28 Mar 2006
Posts: 1369
Re: DS number of students in class [#permalink]

Show Tags

18 Dec 2006, 20:18
n_sathya wrote:
In a class, 20 students speak spanish, 15 speak french and 15 speak chinese. how many students are in the class?
1. exactly 30% of the students in the class speak french
2. all of the students speak english and none speaks more than two languages.

any takers?

1) Gives the total =150
2)We do know exactly how many only speak English(who are not bilingual)
Senior Manager
Joined: 04 Nov 2006
Posts: 259
Location: California

Show Tags

18 Dec 2006, 23:55
A clearly.. English is suddenly introduced into the question..
Manager
Joined: 19 Aug 2006
Posts: 212

Show Tags

19 Dec 2006, 00:06
In a class, 20 students speak spanish, 15 speak french and 15 speak chinese. how many students are in the class?
1. exactly 30% of the students in the class speak french
2. all of the students speak english and none speaks more than two languages.

Stmt 1) Sufficient, we can calculate no of students in the class.

Stmt 2) we dont know the number of english speakers.

So A.
Manager
Joined: 03 Jul 2005
Posts: 192
Location: City

Show Tags

19 Dec 2006, 05:16
Going for A as well

What is the OA? Seen lots of different answers to this question
19 Dec 2006, 05:16
Display posts from previous: Sort by