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Last year in a group of 30 businesses, 21 reported a net

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Last year in a group of 30 businesses, 21 reported a net [#permalink] New post 25 Jan 2010, 08:52
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Last year in a group of 30 businesses, 21 reported a net profit and
15 had investments in foreign markets. How many of the businesses
did not report a net profit nor invest in foreign markets last year?
(1) last year 12 of the 30 businesses
reported a net profit and had investments
in foreign markets.
(2) last year 24 of the 30 businesses
reported a net profit or invested in
foreign markets, or both.

I think the solution should be D but the OA given is
[Reveal] Spoiler:
b


Please explalin.
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Re: ple help [#permalink] New post 25 Jan 2010, 09:35
Maybe you have wrong OA? I think D is a right answer.
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Re: ple help [#permalink] New post 25 Jan 2010, 10:55
yes D should be the ans.

1. = 30-( 21+ 15-12) = 30-24

2. 30-24

both are sufficient.

hence D
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Re: ple help [#permalink] New post 28 Jan 2010, 13:41
IMO D. The language of Stmt 2 is a bit Odd.
A or B or both
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Re: ple help [#permalink] New post 15 Feb 2010, 05:31
I also got D

formulating table is a good way to go..


profit nonprofit total
non
foriegn 9 6 15

foriegn 12 3 15

total 21 9 30
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Re: ple help [#permalink] New post 17 Feb 2010, 15:19
guys what the hell is statement 2? how would you add it to the standard overlapping sets table?
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Re: ple help [#permalink] New post 17 Feb 2010, 16:39
nickk wrote:
guys what the hell is statement 2? how would you add it to the standard overlapping sets table?


It just means that if net profit is represented by set A and investments in foreign market is represented by Set B, then 24 of the 30 businesses were either reporting a net profit or were investing in foreign markets or did both. So essentially, 24 is the total count of elements from either A or B or both, which implies A Union B.
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Re: ple help   [#permalink] 17 Feb 2010, 16:39
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