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D01-22

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Bunuel
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D01-22 [#permalink] New post   16 Sep 2014, 00:12
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A
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E

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15% (low)

Question Stats:

79% (00:52) correct 21% (00:52) wrong based on 154 sessions
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Out of 100 people surveyed, 60 were women. If 10 were smoking women and 20 were smoking men, what percentage of men surveyed were non-smokers?

A. 10
B. 20
C. 30
D. 40
E. 50
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E
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Bunuel
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Re D01-22 [#permalink] New post   16 Sep 2014, 00:12
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Official Solution:

Out of 100 people surveyed, 60 were women. If 10 were smoking women and 20 were smoking men, what percentage of men surveyed were non-smokers?

A. 10
B. 20
C. 30
D. 40
E. 50


From the 100 people surveyed, 60 were women, leaving us with \(100 - 60 = 40\) men. It was further noted that 20 of these men were smokers, hence \(40-20=20\) men were non-smokers. This provides sufficient information to answer the question: \(\frac{40 - 20}{40} *100= 50\%\) of the men surveyed were non-smokers. It's worth mentioning that the question also contains some unnecessary data regarding the number of women who were smokers.


Answer: E
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cemil1986
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Re: D01-22 [#permalink] New post   19 Dec 2014, 06:43
pretty easy mate
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mockingjay
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Re: D01-22 [#permalink] New post   05 Jan 2015, 04:02
it's always wise to carefully read what the question is asking for, if it had been my first time answering this question then i too would have have answered 20%
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gmathopeful19
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Re: D01-22 [#permalink] New post   20 Aug 2017, 11:22
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oof, did not read clearly. Fell for the easy trap
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Re: D01-22 [#permalink] New post   14 Mar 2021, 04:54
I think this is a high-quality question and I agree with explanation. high quality questions
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kaladin123
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Re: D01-22 [#permalink] New post   03 Jun 2021, 18:53
I think this is a high-quality question and I agree with the explanation.
I had a close shave with the easy trap.

MenWomenTotal
Non-Smokers205070
Smokers201030
Total4060100


Non-Smoking men% out of men surveyed \(=\frac{20}{40}=50\)%
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martinfzb
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Re: D01-22 [#permalink] New post   05 Nov 2022, 14:20
oops, I choose 20% too.
20 smoking men divided by the total 100 people.
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Bunuel
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Re: D01-22 [#permalink] New post   13 Jul 2023, 01:43
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I have edited the question and the solution by adding more details to enhance its clarity. I hope it is now easier to understand.
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Re: D01-22 [#permalink]
13 Jul 2023, 01:43
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