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Ana, Bruce and Carlos are on the waiting list of an MBA [#permalink]

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03 Oct 2007, 16:18

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Ana, Bruce and Carlos are on the waiting list of an MBA program. If there are 20 people in front of Ana, 3 people between Bruce and Carlos and 15 people between Ana and Carlos, what is the number of people between Ana and Bruce?

(1) Ana is ahead of Carlos.
(2) There are 40 people on the waiting list.

Re: Manhattan Review Question of the Day- October 4, 2007 [#permalink]

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03 Oct 2007, 17:09

kevincan wrote:

Ana, Bruce and Carlos are on the waiting list of an MBA program. If there are 20 people in front of Ana, 3 people between Bruce and Carlos and 15 people between Ana and Carlos, what is the number of people between Ana and Bruce?

(1) Ana is ahead of Carlos. (2) There are 40 people on the waiting list.

Re: Manhattan Review Question of the Day- October 4, 2007 [#permalink]

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03 Oct 2007, 17:22

kevincan wrote:

Ana, Bruce and Carlos are on the waiting list of an MBA program. If there are 20 people in front of Ana, 3 people between Bruce and Carlos and 15 people between Ana and Carlos, what is the number of people between Ana and Bruce?

(1) Ana is ahead of Carlos. (2) There are 40 people on the waiting list.

strange question
E is too tempting, but will go with B on the test day

1. not suff. clearly 20+A+15+C+3+B

2. seems like suff. if we assume this C+3+B+15+A+19 there is no other way to organize the queue with given info. let's forget about the order other than given on the stem

Re: Manhattan Review Question of the Day- October 4, 2007 [#permalink]

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03 Oct 2007, 20:33

kevincan wrote:

Ana, Bruce and Carlos are on the waiting list of an MBA program. If there are 20 people in front of Ana, 3 people between Bruce and Carlos and 15 people between Ana and Carlos, what is the number of people between Ana and Bruce?

(1) Ana is ahead of Carlos. (2) There are 40 people on the waiting list.

From the stem of question there are 4 Possibilities of B position.

Can we tell number of people between Anna and Bruce ?
No there are still 2 possibilities.

From Stmnt2: With stmnt 2 , there are 40 people in the waiting list . Doesnt solve much of our problem.

Combining Now we know there has to be 5 people behind C now. Since there are 5 people and number of people between B and C is only 3 , guess B can be either behind and front of C.
So E.

Well the diagram looks funky..eh? Hope the OA is not!

Re: Manhattan Review Question of the Day- October 4, 2007 [#permalink]

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03 Oct 2007, 20:53

ashkrs wrote:

kevincan wrote:

Ana, Bruce and Carlos are on the waiting list of an MBA program. If there are 20 people in front of Ana, 3 people between Bruce and Carlos and 15 people between Ana and Carlos, what is the number of people between Ana and Bruce?

(1) Ana is ahead of Carlos. (2) There are 40 people on the waiting list.

From the stem of question there are 4 Possibilities of B position.

Can we tell number of people between Anna and Bruce ? No there are still 2 possibilities.

From Stmnt2: With stmnt 2 , there are 40 people in the waiting list . Doesnt solve much of our problem.

Combining Now we know there has to be 5 people behind C now. Since there are 5 people and number of people between B and C is only 3 , guess B can be either behind and front of C. So E.

Well the diagram looks funky..eh? Hope the OA is not!

Re: Manhattan Review Question of the Day- October 4, 2007 [#permalink]

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03 Oct 2007, 22:26

kevincan wrote:

Ana, Bruce and Carlos are on the waiting list of an MBA program. If there are 20 people in front of Ana, 3 people between Bruce and Carlos and 15 people between Ana and Carlos, what is the number of people between Ana and Bruce?

(1) Ana is ahead of Carlos. (2) There are 40 people on the waiting list.

C. neither is suff.

so combining togather, B should be infront of C otherwise there will be 41 people.

1. not suff since we don;t know about location of B
2. neither suff

together suff. because there will be 41 people as Fistail mentioned above,
trick is here the ABC, we should include them too into the waitlist than it becomes 41

Re: Manhattan Review Question of the Day- October 4, 2007 [#permalink]

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04 Oct 2007, 14:40

kevincan wrote:

Ana, Bruce and Carlos are on the waiting list of an MBA program. If there are 20 people in front of Ana, 3 people between Bruce and Carlos and 15 people between Ana and Carlos, what is the number of people between Ana and Bruce?

(1) Ana is ahead of Carlos. (2) There are 40 people on the waiting list.

Let a, b and c be their places in the line
a=20
|b-c|=4 and |a-c|=16