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# Kyle is making a CD containing 10 of his favorite songs. He

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Kyle is making a CD containing 10 of his favorite songs. He [#permalink]

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09 Apr 2005, 01:17
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Kyle is making a CD containing 10 of his favorite songs. He has chosen two blues songs and 8 rock-n-roll songs to be on the CD. The blues songs will be the first and last songs. How many different orderings of songs on the CD are possible?

A. 3,628,800
B. 161,280
C. 80,640
D. 20,160
E. 160
[Reveal] Spoiler: OA

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Don Quixote. Part i. Book. iii. Chap. xi.

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09 Apr 2005, 02:31
C

B1 _ _ _ _ _ _ _ _ B2 or B2 _ _ _ _ _ _ _ _ B1 => 2nd to 9th position is 8! = 40320 * 2 = 80640
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Senior Manager
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09 Apr 2005, 02:46
completely agree.
However, it is really strange that 40320 is not an option, because one the the most frequent mistakes is to forget that 8! should be multiplied by 2.
I don't think we will not find it in our actual GMAT.
09 Apr 2005, 02:46
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