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

 It is currently 03 Jul 2015, 04:24

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A certain roller coaster has 3 cars and a passenger is

Author Message
TAGS:
Senior Manager
Joined: 10 Dec 2004
Posts: 274
Followers: 1

Kudos [?]: 67 [0], given: 0

A certain roller coaster has 3 cars and a passenger is [#permalink]  23 Dec 2004, 08:55
A certain roller coaster has 3 cars and a passenger is likely to rde in any one of the 3 cars each time the passenger rides the roller coaster. If a certain passenger is to ride the coaster 3 times, what is the probability that the passenger will ride in each of the 2 cars.

A. 0
B. 2/9
C. 1/9
D. 1
E. 1/3

What is the correct answer and why? I have the answer, don;t know why.
Manager
Joined: 28 Jul 2004
Posts: 59
Location: Na
Followers: 1

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

Re: Probability [#permalink]  23 Dec 2004, 10:52
I do not get this piece:
what is the probability that the passenger will ride in each of the 2 cars.
+++++
Does it mean that in 3 attempts the passenger will be riding the same car twice?If that is the case,what is the purpose of "each"?Tx.

Anna

pb_india wrote:
A certain roller coaster has 3 cars and a passenger is likely to rde in any one of the 3 cars each time the passenger rides the roller coaster. If a certain passenger is to ride the coaster 3 times, what is the probability that the passenger will ride in each of the 2 cars.

A. 0
B. 2/9
C. 1/9
D. 1
E. 1/3

What is the correct answer and why? I have the answer, don;t know why.

_________________

We can crack the exam together

Manager
Joined: 18 Jun 2004
Posts: 105
Location: san jose , CA
Followers: 1

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

B - will explain if correct
_________________

---- Hero never chooses Destiny
Destiny chooses Him ......

Manager
Joined: 18 Jun 2004
Posts: 105
Location: san jose , CA
Followers: 1

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

Sorry correction E
_________________

---- Hero never chooses Destiny
Destiny chooses Him ......

Manager
Joined: 13 Dec 2004
Posts: 51
Followers: 0

Kudos [?]: 2 [0], given: 0

rahul you're not making any sense. Doesnt' the question actually ask what is the probability that the person will ride in each of the 3 cars? That's the only thing that makes sense.

If so, then I think the answer is as follows:

Total number of combinations of cars the person could ride in:
3x3x3 = 27

Total number of combinations we like:
1,2,3
1,3,2
2,1,3
2,3,1
3,1,2
3,2,1

= 6/27 = 2/9

Right?
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4309
Followers: 29

Kudos [?]: 235 [0], given: 0

I think this question has a typo or else it is very ambiguous. As hilairity said, it should have been "3" cars at the end.
_________________

Best Regards,

Paul

Senior Manager
Joined: 10 Dec 2004
Posts: 274
Followers: 1

Kudos [?]: 67 [0], given: 0

Guys,
Thanks a lot. It was a typo on my part. It is "3" cars and answer is correct:
2/9

Thanks again for the explanation.
Similar topics Replies Last post
Similar
Topics:
A certain roller coaster has 3 cars, and a passenger is 9 30 Aug 2007, 02:39
A certain roller coaster has 3 cars, and a passenger is 2 27 Aug 2006, 02:23
A certain roller coaster has 3 cars, and a passenger is 1 12 Apr 2006, 18:59
A certain roller coaster has 3 cars, and a passenger is 6 06 Feb 2006, 16:45
A certain roller coaster has 3 cars, and a passenger is 2 27 Sep 2005, 06:41
Display posts from previous: Sort by