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2 men and 3 women line up in a row. If men stand on the first and the

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Math Revolution GMAT Instructor
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2 men and 3 women line up in a row. If men stand on the first and the  [#permalink]

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New post 15 Oct 2017, 06:12
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A
B
C
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E

Difficulty:

  25% (medium)

Question Stats:

63% (00:21) correct 37% (00:29) wrong based on 67 sessions

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2 men and 3 women line up in a row. If men stand on the first and the last, how many possible cases are there?

A. 6
B. 7
C. 8
D. 10
E. 12

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Re: 2 men and 3 women line up in a row. If men stand on the first and the  [#permalink]

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New post 15 Oct 2017, 06:16
MathRevolution wrote:
2 men and 3 women line up in a row. If men stand on the first and the last, how many possible cases are there?

A. 6
B. 7
C. 8
D. 10
E. 12



Work one by one on men and then women
MEN - 2 and two available positions, so 2! ways
women - 3 and thre avail positions, so 3! ways

answer \(2!*3!=2*6=12\)
E
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2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


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Re: 2 men and 3 women line up in a row. If men stand on the first and the &nbs [#permalink] 15 Oct 2017, 06:16
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