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Out of 4 boys and 4 girls, in how many ways can they be seated on a bu

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Out of 4 boys and 4 girls, in how many ways can they be seated on a bu  [#permalink]

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New post 30 Mar 2018, 08:17
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Difficulty:

  45% (medium)

Question Stats:

67% (01:19) correct 33% (02:40) wrong based on 9 sessions

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Out of 4 boys and 4 girls, in how many ways can they be seated on a bus if there are only 6 places and all the girls have to be seated?

    a) 3560
    b) 3840
    c) 4180
    d) 4320
    e) 1728

OA:
d)


Sorry, don't know the source. I'm preparing for GMAT with a friend of mine and he's taking classes at his college. We were reviewing some of the questions of his last class and this one popped up.
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Joined: 02 Sep 2009
Posts: 55681
Out of 4 boys and 4 girls, in how many ways can they be seated on a bu  [#permalink]

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New post 30 Mar 2018, 08:22
lenric wrote:
Out of 4 boys and 4 girls, in how many ways can they be seated on a bus if there are only 6 places and all the girls have to be seated?

    a) 3560
    b) 3840
    c) 4180
    d) 4320
    e) 1728

OA:
d)


Sorry, don't know the source. I'm preparing for GMAT with a friend of mine and he's taking classes at his college. We were reviewing some of the questions of his last class and this one popped up.


This is not a GMAT question. ONLY Questions from Reliable GMAT Sources are Allowed on the Forum! Please do NOT post questions from random math books and web sites.

Topic is locked.
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Re: Out of 4 boys and 4 girls, in how many ways can they be seated on a bu  [#permalink]

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New post 30 Mar 2018, 08:25
lenric wrote:
Out of 4 boys and 4 girls, in how many ways can they be seated on a bus if there are only 6 places and all the girls have to be seated?

    a) 3560
    b) 3840
    c) 4180
    d) 4320
    e) 1728

OA:
d)


Sorry, don't know the source. I'm preparing for GMAT with a friend of mine and he's taking classes at his college. We were reviewing some of the questions of his last class and this one popped up.


21. Combinatorics/Counting Methods



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Re: Out of 4 boys and 4 girls, in how many ways can they be seated on a bu   [#permalink] 30 Mar 2018, 08:25
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