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Social clubs A and B have the same number of members, but both the rat

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V
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Social clubs A and B have the same number of members, but both the rat  [#permalink]

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New post 22 Jan 2018, 22:19
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Question Stats:

74% (03:06) correct 26% (03:36) wrong based on 63 sessions

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Social clubs A and B have the same number of members, but both the ratio of men to women and the ratio of single women to married women in club B is twice that of club A. If there are 840 members in club B in a ratio of 2 : 1 men to women and the ratio of single women to married women in the club is 3 : 2, how many married women are in the clubs?

A. 700
B. 352
C. 348
D. 317
E. 240

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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.


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Re: Social clubs A and B have the same number of members, but both the rat  [#permalink]

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New post 23 Jan 2018, 06:16
1
1
Club B:

Total Members in B = 840
Ratio of men to women = 2 : 1
Men = 560 and Women = 280

Total Women in B = 280
Ratio of single women to married women = 3 : 2
Single women = 168 and Married women = 112

Club A:

Total members in A = Total members in B = 840
(Men : Women) in B = 2(Men : Women) in A
(Men : Women) in A = 1 : 1
Men in A = 420; Women in A = 420

(Single women : Married women) in B = 2(Single women: Married women) in A
(Single women : Married women) in A = 3 : 4
Single women in A = 180; Married women in A = 240

Total married women = 112 + 240 = 352

Answer: B
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Re: Social clubs A and B have the same number of members, but both the rat  [#permalink]

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New post 15 Feb 2018, 10:06
Bunuel can you kindly explain to me what happens to the ratios when, for example in this problem, they "double"?

In club B we have Single/Married = 3/2, if the ratio of single women to married women in club B is twice that of club A what the original ratio becomes?
Math Expert
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Joined: 02 Sep 2009
Posts: 52231
Re: Social clubs A and B have the same number of members, but both the rat  [#permalink]

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New post 15 Feb 2018, 22:27
1
MvArrow wrote:
Bunuel can you kindly explain to me what happens to the ratios when, for example in this problem, they "double"?

In club B we have Single/Married = 3/2, if the ratio of single women to married women in club B is twice that of club A what the original ratio becomes?


(Men:Women) in A = 1/1

(Men:Women) in B is twice that of A, so in B it's = 2*(1/1) = 2/1.
_________________

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

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 52231
Re: Social clubs A and B have the same number of members, but both the rat  [#permalink]

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New post 15 Feb 2018, 22:28
1
Bunuel wrote:
MvArrow wrote:
Bunuel can you kindly explain to me what happens to the ratios when, for example in this problem, they "double"?

In club B we have Single/Married = 3/2, if the ratio of single women to married women in club B is twice that of club A what the original ratio becomes?


(Men:Women) in A = 1/1

(Men:Women) in B is twice that of A, so in B it's = 2*(1/1) = 2/1.


3. Fractions, Decimals, Ratios and Proportions



For more:
ALL YOU NEED FOR QUANT ! ! !
Ultimate GMAT Quantitative Megathread


Hope it helps.
_________________

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

Current Student
User avatar
B
Joined: 06 Sep 2016
Posts: 133
Location: Italy
Schools: EDHEC (A$)
GMAT 1: 650 Q43 V37
GPA: 3.2
WE: General Management (Human Resources)
Premium Member
Re: Social clubs A and B have the same number of members, but both the rat  [#permalink]

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New post 16 Feb 2018, 06:37
Bunuel wrote:
Bunuel wrote:
MvArrow wrote:
Bunuel can you kindly explain to me what happens to the ratios when, for example in this problem, they "double"?

In club B we have Single/Married = 3/2, if the ratio of single women to married women in club B is twice that of club A what the original ratio becomes?


(Men:Women) in A = 1/1

(Men:Women) in B is twice that of A, so in B it's = 2*(1/1) = 2/1.


3. Fractions, Decimals, Ratios and Proportions



For more:
ALL YOU NEED FOR QUANT ! ! !
Ultimate GMAT Quantitative Megathread


Hope it helps.


Thanks A LOT :-)
GMAT Club Bot
Re: Social clubs A and B have the same number of members, but both the rat &nbs [#permalink] 16 Feb 2018, 06:37
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Social clubs A and B have the same number of members, but both the rat

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