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If 60 people attend a party, how many of these people drink coffee?

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If 60 people attend a party, how many of these people drink coffee?  [#permalink]

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New post 12 Oct 2016, 00:55
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D
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  15% (low)

Question Stats:

79% (01:00) correct 21% (01:24) wrong based on 105 sessions

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If 60 people attend a party, how many of these people drink coffee?

(1) The number of people at the party who drink coffee is 4 times the number of those who do not drink coffee.

(2) The number of people who don't drink coffee is 36 less than the number who do drink coffee.

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Re: If 60 people attend a party, how many of these people drink coffee?  [#permalink]

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New post 12 Oct 2016, 00:59
Bunuel wrote:
If 60 people attend a party, how many of these people drink coffee?

(1) The number of people at the party who drink coffee is 4 times the number of those who do not drink coffee.

(2) The number of people who don't drink coffee is 36 less than the number who do drink coffee.


Lets assume, people who drink coffee: K & the one's who don't: L

(1) 4L + L = 60. L = 12. 48 people drink coffee, 12 don't: Sufficient
(2) (K-36)+K = 60. K = 48. 48 people drink coffee, 12 don't: Sufficient

D should be the answer.
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If 60 people attend a party, how many of these people drink coffee?  [#permalink]

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New post 14 Aug 2018, 20:41
Bunuel wrote:
If 60 people attend a party, how many of these people drink coffee?

(1) The number of people at the party who drink coffee is 4 times the number of those who do not drink coffee.

(2) The number of people who don't drink coffee is 36 less than the number who do drink coffee.


Bunuel But Sir it is not mentioned that all the people are either drinking coffee or not drinking anything??? ...So how ans is D instead of E
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Re: If 60 people attend a party, how many of these people drink coffee?  [#permalink]

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New post 14 Aug 2018, 22:32
janadipesh wrote:
Bunuel wrote:
If 60 people attend a party, how many of these people drink coffee?

(1) The number of people at the party who drink coffee is 4 times the number of those who do not drink coffee.

(2) The number of people who don't drink coffee is 36 less than the number who do drink coffee.


Bunuel But Sir it is not mentioned that all the people are either drinking coffee or not drinking anything??? ...So how ans is D instead of E


Are there any other category besides those who drink coffee and those who don't?
_________________

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:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

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?
Extra-hard Quant Tests with Brilliant Analytics

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Re: If 60 people attend a party, how many of these people drink coffee? &nbs [#permalink] 14 Aug 2018, 22:32
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