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D01-22

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D01-22 [#permalink]

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New post 16 Sep 2014, 00:12
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E

Difficulty:

  15% (low)

Question Stats:

66% (00:34) correct 34% (00:23) wrong based on 147 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
[Reveal] Spoiler: OA

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Kudos [?]: 132742 [0], given: 12360

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Re D01-22 [#permalink]

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New post 16 Sep 2014, 00:12
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

There were \(100 - 60 = 40\) men surveyed. We further read that 20 men were smokers. Thus \(40-20=20\) men were non-smokers. We have enough information to answer the question. \(\frac{40 - 20}{40} = 50%\) of men surveyed were non-smokers. Note that the question stem gives us some redundant information about how many women were smokers.

Answer: E
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
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Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
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Re: D01-22 [#permalink]

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New post 19 Dec 2014, 06:43
pretty easy mate

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Re: D01-22 [#permalink]

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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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Re: D01-22 [#permalink]

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New post 20 Aug 2017, 11:22
oof, did not read clearly. Fell for the easy trap

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Re: D01-22 [#permalink]

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New post 28 Aug 2017, 18:08
I would avoid questions that assume that men and women are the only genders, in this day and age, since some people identify themselves as non-gendered or other gendered. It would be clearer/more accurate if the item was stated as "Out of 100 men and women surveyed..." or "Out of 100 people surveyed, 60 were women and 40 were men."

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Re: D01-22   [#permalink] 28 Aug 2017, 18:08
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