GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 11 Dec 2018, 10:58

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 in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
  • Free GMAT Prep Hour

     December 11, 2018

     December 11, 2018

     09:00 PM EST

     10:00 PM EST

    Strategies and techniques for approaching featured GMAT topics. December 11 at 9 PM EST.
  • The winning strategy for 700+ on the GMAT

     December 13, 2018

     December 13, 2018

     08:00 AM PST

     09:00 AM PST

    What people who reach the high 700's do differently? We're going to share insights, tips and strategies from data we collected on over 50,000 students who used examPAL.

On a certain transatlantic crossing, 20 percent of a ships

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
User avatar
Joined: 19 Aug 2006
Posts: 204
On a certain transatlantic crossing, 20 percent of a ships  [#permalink]

Show Tags

New post 25 Dec 2006, 06:23
1
3
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (00:55) correct 0% (00:00) wrong based on 100 sessions

HideShow timer Statistics

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
Director
Director
avatar
Joined: 28 Dec 2005
Posts: 891
Re: PS [Percentage]  [#permalink]

Show Tags

New post 25 Dec 2006, 06:38
2
1
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: 1529
Location: Ann Arbor
Schools: Ross '10
  [#permalink]

Show Tags

New post 25 Dec 2006, 07:53
I used venn diagram and got the same answer 50%
Director
Director
User avatar
Joined: 30 Nov 2006
Posts: 573
Location: Kuwait
  [#permalink]

Show Tags

New post 25 Dec 2006, 08:12
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
  [#permalink]

Show Tags

New post 26 Dec 2006, 11:42
Got C

X*20/100 = Y*(100 -60)*/100
=> Y/X*100 = 50
VP
VP
avatar
Joined: 21 Mar 2006
Posts: 1047
Location: Bangalore
  [#permalink]

Show Tags

New post 26 Dec 2006, 19:39
1
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: 258
Re: PS [Percentage]  [#permalink]

Show Tags

New post 26 Dec 2006, 21:24
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
Senior Manager
Senior Manager
avatar
Status: Gonna rock this time!!!
Joined: 22 Jul 2012
Posts: 449
Location: India
GMAT 1: 640 Q43 V34
GMAT 2: 630 Q47 V29
WE: Information Technology (Computer Software)
Re: On a certain transatlantic crossing, 20 percent of a ships  [#permalink]

Show Tags

New post 05 Jan 2013, 00:02
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 : http://gmatclub.com/forum/end-of-my-gmat-journey-149328.html#p1197992

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 51100
Re: On a certain transatlantic crossing, 20 percent of a ships  [#permalink]

Show Tags

New post 05 Jan 2013, 03:36
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 9116
Premium Member
Re: On a certain transatlantic crossing, 20 percent of a ships  [#permalink]

Show Tags

New post 28 Nov 2018, 17:48
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

GMAT Club Bot
Re: On a certain transatlantic crossing, 20 percent of a ships &nbs [#permalink] 28 Nov 2018, 17:48
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  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| 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®.