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DS

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by ketkoag » Mon May 18, 2009 8:19 am
How many people in Quebec speak both English and French?
1) 2% of the people speak neither English nor French.
2) 89% of the people speak English, 34% people speak French.

OA given is C but i think it should be E as it is asking no. of people, but in both the options percentage is given.. please lemme know ur views..
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Source: — Data Sufficiency |
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Re: DS

by Vemuri » Mon May 18, 2009 9:34 am
The formula: Total = A + B - Both + Neither is very useful for these kind of problems

Question is asking us to find the value of "Both".

Since we are dealing with percentages, consider the Total to be 100

Statement 1: Gives the value of Neither = 2% (i.e. 2). Not sufficient because we do not know the distribution between A & B.

Statement 2: Gives the values of A = 89 & B = 34. Not sufficient.

Together both the statement provide us with the required information.
100 = 89 + 34 - Both + 2. From this we can determine the value of Both.

Hence C. Hope this helps.
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by tdadic84 » Mon May 18, 2009 9:37 am
I think that is wrong. answer shoud be E
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by benissleeping » Wed May 20, 2009 5:15 am
Has to be E as it does not give any numbers just percentages.
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by bluementor » Wed May 20, 2009 5:26 am
You are right ketkoag...it should be E.

-BM-
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by mike22629 » Wed May 20, 2009 5:58 am
Yea, I'm sure that the question intended to ask what percent of people speak both. There is no possible way of figuring out how many people without a concrete number.
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