Find all School-related info fast with the new School-Specific MBA Forum

It is currently 05 May 2016, 15:42
GMAT Club Tests

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

On a certain transatlantic crossing, 20 percent of a ships

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

Hide Tags

Manager
Manager
User avatar
Joined: 19 Aug 2006
Posts: 217
Followers: 1

Kudos [?]: 26 [0], given: 0

On a certain transatlantic crossing, 20 percent of a ships [#permalink]

Show Tags

New post 25 Dec 2006, 07:23
2
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (02:05) correct 0% (00:00) wrong based on 40 sessions

HideShow timer Statictics

On a certain transatlantic crossing, 20 percent of a ship’s passengers held round-trip tickets and also took their cars abroad the ship. If 60 percent of the passengers with round-trip tickets did not take their cars abroad the ship, what percent of the ship’s passengers held round-trip tickets?

A. 33 1/3%
B. 40%
C. 50%
D. 60%
E. 66 2/3%

OPEN DISCUSSION OF THIS QUESTION IS HERE: on-a-certain-transatlantic-crossing-20-percent-of-a-ship-s-105277.html
1 KUDOS received
Director
Director
avatar
Joined: 28 Dec 2005
Posts: 921
Followers: 2

Kudos [?]: 42 [1] , given: 0

Re: PS [Percentage] [#permalink]

Show Tags

New post 25 Dec 2006, 07:38
1
This post received
KUDOS
1
This post was
BOOKMARKED
johnycute wrote:
On a certain transatlantic crossing, 20 percent of a ship’s passengers held round-trip tickets and also took their cars abroad the ship. If 60 percent of the passengers with round-trip tickets did not take their cars abroad the ship, what percent of the ship’s passengers held round-trip tickets?
A. 33 1/3%
B. 40%
C. 50%
D. 60%
E. 66 2/3%


I get C (50%)

20% held roundtrip tix and took cars.
Let x be total on ship then above can be represented as 0.2x.
Let r be number of people who took round trip.
60% of roundtrip passengers did not take cars => 40% of r took cars
=>0.4r = 0.2x

=> r/x (asked) = 0.2/0.4 = 0.5
thus in terms of percentage, 50%
SVP
SVP
User avatar
Joined: 08 Nov 2006
Posts: 1559
Location: Ann Arbor
Schools: Ross '10
Followers: 13

Kudos [?]: 178 [0], given: 1

 [#permalink]

Show Tags

New post 25 Dec 2006, 08:53
I used venn diagram and got the same answer 50%
_________________

My Profile/GMAT/MBA Story
http://www.gmatclub.com/forum/111-t59345

GMAT Club Premium Membership - big benefits and savings

Director
Director
User avatar
Joined: 30 Nov 2006
Posts: 591
Location: Kuwait
Followers: 13

Kudos [?]: 215 [0], given: 0

 [#permalink]

Show Tags

New post 25 Dec 2006, 09:12
My reasoning:

T: total passengers
G1: those with round-trip tickets
G2: those with cars .... etc
B: both with cars and tickets [ G1 x G2 ]

By definition: those with tickets only are [ G1 - B ]
those with cars only are [ G2 - B ]

B = 0.2 T
G1 - B = 0.6 G1 [ G1 only ]
--> B = 0.4 G1

back to our initial equation
B = 0.4 G1 = 0.2 T
G1/T = 0.2 / 0.4 = 0.5 or 50 %

Answer is C
Intern
Intern
avatar
Joined: 24 Feb 2006
Posts: 48
Followers: 1

Kudos [?]: 1 [0], given: 0

 [#permalink]

Show Tags

New post 26 Dec 2006, 12:42
Got C

X*20/100 = Y*(100 -60)*/100
=> Y/X*100 = 50
VP
VP
avatar
Joined: 21 Mar 2006
Posts: 1134
Location: Bangalore
Followers: 2

Kudos [?]: 32 [0], given: 0

 [#permalink]

Show Tags

New post 26 Dec 2006, 20:39
60% of people who had round trip tickets did not take their cars.
Thus, 40% of the people who had round trip tickets took their cars.
Number of people who had round trip tickets AND took their cars = 20

(40/100) * X = 20

<where X is the number of people who had round trip tickets>

X = 50.

Give me C!
Senior Manager
Senior Manager
avatar
Joined: 05 Oct 2006
Posts: 267
Followers: 1

Kudos [?]: 8 [0], given: 0

Re: PS [Percentage] [#permalink]

Show Tags

New post 26 Dec 2006, 22:24
X = TOTAL no of passengers
y = total no of passengers with round trip tkt

then 20% of x = 40 % of y

hence reqd % = y/x * 100 = 50 %

choice C
Director
Director
avatar
Status: Gonna rock this time!!!
Joined: 22 Jul 2012
Posts: 547
Location: India
GMAT 1: 640 Q43 V34
GMAT 2: 630 Q47 V29
WE: Information Technology (Computer Software)
Followers: 3

Kudos [?]: 49 [0], given: 562

Re: On a certain transatlantic crossing, 20 percent of a ships [#permalink]

Show Tags

New post 05 Jan 2013, 01:02
how to solve this using a 2 set matrix?
_________________

hope is a good thing, maybe the best of things. And no good thing ever dies.

Who says you need a 700 ?Check this out : http://gmatclub.com/forum/who-says-you-need-a-149706.html#p1201595

My GMAT Journey : end-of-my-gmat-journey-149328.html#p1197992

Expert Post
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 32657
Followers: 5659

Kudos [?]: 68754 [0], given: 9818

Re: On a certain transatlantic crossing, 20 percent of a ships [#permalink]

Show Tags

New post 05 Jan 2013, 04:36
Expert's post
Re: On a certain transatlantic crossing, 20 percent of a ships   [#permalink] 05 Jan 2013, 04:36
    Similar topics Author Replies Last post
Similar
Topics:
14 Experts publish their posts in the topic On a certain transatlantic crossing, 20 percent of a ship's Bunuel 9 09 Mar 2014, 15:17
On a certain transatlantic crossing, 20 percent of a ship's passengers Baten80 4 11 May 2011, 08:28
4 If 20 percent of the students at a certain school went to a camping tr dreambeliever 10 20 Mar 2011, 21:13
18 Experts publish their posts in the topic On a certain transatlantic crossing, 20 percent of a ship’s azule45 15 01 May 2009, 12:45
6 Experts publish their posts in the topic On a certain transatlantic crossing, 20 percent of a ship s ritula 6 20 Jun 2008, 00:16
Display posts from previous: Sort by

On a certain transatlantic crossing, 20 percent of a ships

  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 and phpBB SEO

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®.