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16 Sep 2014, 00:12
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E
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Difficulty:
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Question Stats:
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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
A. 10
B. 20
C. 30
D. 40
E. 50
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
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
cemil1986
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19 Dec 2014, 06:43
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pretty easy mate
