It is currently 19 Nov 2017, 19:28

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

John weighs twice as much as Susan. Susan's weight is 60% of

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

1 KUDOS received
Manager
Manager
avatar
Joined: 07 Aug 2011
Posts: 58

Kudos [?]: 23 [1], given: 1

Concentration: Entrepreneurship, Finance
GPA: 3.87
John weighs twice as much as Susan. Susan's weight is 60% of [#permalink]

Show Tags

New post 10 Mar 2012, 23:58
1
This post received
KUDOS
3
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

75% (01:28) correct 25% (01:26) wrong based on 228 sessions

HideShow timer Statistics

John weighs twice as much as Susan. Susan's weight is 60% of Sam's weight. Mark weighs 50% of Lynn's weight. Lynn weighs 190% of John's weight. Which of these 5 people weighs the least?

A. John
B. Susan
C. Sam
D. Mark
E. Lynn
[Reveal] Spoiler: OA

Kudos [?]: 23 [1], given: 1

TOEFL Forum Moderator
avatar
Joined: 16 Nov 2010
Posts: 1602

Kudos [?]: 600 [0], given: 40

Location: United States (IN)
Concentration: Strategy, Technology
Premium Member Reviews Badge
Re: John weighs twice as much as Susan. Susan's weight is 60% of [#permalink]

Show Tags

New post 11 Mar 2012, 00:12
Let J – John’s weight
S – Susan’s weight
M – Mark’s weight
A – Sam’s weight
L – Lynn’s weight
J = 2S
S = 0.6A
M = 0.5L
L = 1.9J
Let us convert these weights to one variable
S = J/2
A = S/0.6 = J/1.2 = 5J/6
L = 1.9J
M = 0.5 * 1.9J = 0.95J
So Susan has the least weight.

Answer - B
_________________

Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)

GMAT Club Premium Membership - big benefits and savings

Kudos [?]: 600 [0], given: 40

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 42259

Kudos [?]: 132730 [0], given: 12335

Re: John weighs twice as much as Susan. Susan's weight is 60% of [#permalink]

Show Tags

New post 11 Mar 2012, 00:16
Stoneface wrote:
John weighs twice as much as Susan. Susan's weight is 60% of Sam's weight. Mark weighs 50% of Lynn's weight. Lynn weighs 190% of John's weight. Which of these 5 people weighs the least?

A. John
B. Susan
C. Sam
D. Mark
E. Lynn


John weighs twice as much as Susan --> J=2S --> John cannot weigh the least;
Susan's weight is 60% of Sam's weight --> S=0.6*Sam --> Sam cannot weigh the least;
Mark weighs 50% of Lynn's weight --> M=0.5*L --> Lynn cannot weigh the least;
Lynn weighs 190% of John's weight --> L=1.9*J --> John cannot weigh the least (we already know that);

As you can see the answer is either Susan (S) or Mark (M). To compare their weights we should express their weights in regards of the same person: M=0.5*L=0.5*(1.9*J)=0.85*J and from J=2S, S=0.5*J --> Susan weights the least: Susan's weight is 50% of that of John and Mark's weight is more than 50% of that of John.

Answer: B.

Hope it's clear.
_________________

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

Kudos [?]: 132730 [0], given: 12335

Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 15658

Kudos [?]: 282 [0], given: 0

Premium Member
Re: John weighs twice as much as Susan. Susan's weight is 60% of [#permalink]

Show Tags

New post 12 Sep 2014, 09:11
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Kudos [?]: 282 [0], given: 0

Manager
Manager
avatar
B
Joined: 23 May 2013
Posts: 189

Kudos [?]: 114 [0], given: 42

Location: United States
Concentration: Technology, Healthcare
Schools: Stanford '19 (M)
GMAT 1: 760 Q49 V45
GPA: 3.5
GMAT ToolKit User
John weighs twice as much as Susan. Susan's weight is 60% of [#permalink]

Show Tags

New post 12 Sep 2014, 11:47
Quote:
John weighs twice as much as Susan. Susan's weight is 60% of Sam's weight. Mark weighs 50% of Lynn's weight. Lynn weighs 190% of John's weight. Which of these 5 people weighs the least?



This question requires no algebra, just a parsing of the text.

0---------|Susan|---------|Sam|--|Max|--|John|------------------|Susan|.

John weighs twice as much as Susan. Self explanatory.
Susan's weight is 60% of Sam's weight. This means Sam weighs more than Susan, but less than John, because Susan is 50% of John's weight. (1/.6 = 5/3 = 1.66%. This means Sam weights 1.6 times Susan, which is less than 2).
Mark weighs 50% of Lynn's weight. Let's come back to this.
Lynn weighs 190% of John's weight. We can approximate 190% to be almost twice as much, so Lynn weighs almost twice as much as John. Now, Mark weighs half of Lynn, so a little bit less than John.

We don't know the exact relation between Max and Sam, but it doesn't matter because we still know that Susan is much less than all of them.

Answer: B

ANOTHER APPROACH:

Just use POE.

John weighs twice as much as Susan. John weighs more than Susan - eliminate.
Susan's weight is 60% of Sam's weight. Sam weighs more than Susan - eliminate.
Mark weighs 50% of Lynn's weight. Wait on this one.
Lynn weighs 190% of John's weight. Lynn weighs more than John. Eliminate Susan.

Now we've narrowed down our potential solutions to 2 just by reading the options. We have either Susan or Mark. Now - Susan weighs almost twice as much as John, and Mark weighs half of Lynn, so Mark and John weigh very close to one another. John however is twice as much as Susan. So Susan still weighs considerably less.

Answer: B

Kudos [?]: 114 [0], given: 42

Manager
Manager
User avatar
Joined: 10 Sep 2014
Posts: 71

Kudos [?]: 92 [0], given: 102

Re: John weighs twice as much as Susan. Susan's weight is 60% of [#permalink]

Show Tags

New post 27 Nov 2014, 02:59
Thought i will share an easy way that i found

Take John's weight as 100

J=100
So Lynn = 190
Mark = 95
Susan = 50
Sam = 500/6


Lowest is Susan
_________________

Press KUDOs if you find my explanation helpful

Kudos [?]: 92 [0], given: 102

Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 15658

Kudos [?]: 282 [0], given: 0

Premium Member
Re: John weighs twice as much as Susan. Susan's weight is 60% of [#permalink]

Show Tags

New post 05 Sep 2017, 20:59
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Kudos [?]: 282 [0], given: 0

Re: John weighs twice as much as Susan. Susan's weight is 60% of   [#permalink] 05 Sep 2017, 20:59
Display posts from previous: Sort by

John weighs twice as much as Susan. Susan's weight is 60% of

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.