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A Coach is filling out the starting lineup for his indoor

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Manager
Manager
Joined: 13 Oct 2012
Posts: 79
Concentration: General Management, Leadership
Schools: Thunderbird '16
GMAT 1: 760 Q49 V46
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Kudos [?]: -17 [0], given: 0

Re: A Coach is filling out the starting lineup for his indoor [#permalink] New post 03 Jan 2013, 23:56
2C1 * 8C2 * 6C2 * 4C1
Ans - D
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Manager
Joined: 09 Apr 2012
Posts: 61
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Kudos [?]: 7 [0], given: 25

Re: A Coach is filling out the starting lineup for his indoor [#permalink] New post 09 Feb 2013, 10:59
I always preferred slot method to solve these problems since childhood.

But my following approach gave me a wrong answer.
2 8 7 6 5 4 =13440.

What i forgot to do is divide (8*7) with 2 and 6*5 with another 2(since order doesnt matter between 2 defenders and 2 midfielders).

One of the other way of doing this is.

2P1*8P5/2*2.
Re: A Coach is filling out the starting lineup for his indoor   [#permalink] 09 Feb 2013, 10:59
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A Coach is filling out the starting lineup for his indoor

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