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Mike@Magoosh
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A librarian has a set of ten books, including four different books about Abraham Lincoln. The librarian wants to put the ten books on a shelf with the four Lincoln books next to each other, somewhere on the shelf among the other six books. How many different arrangements of the ten books are possible?
(A) (10!)/(4!)
(B) (4!)(6!)
(C) (4!)(7!)
(D) (4!)(10!)
(E) (4!)(6!)(10!)
For a set of Counting Practice Problems for the GMAT, as well as the OA & OE for this particular question, see:
https://magoosh.com/gmat/2015/counting-p ... -the-gmat/
Mike
(A) (10!)/(4!)
(B) (4!)(6!)
(C) (4!)(7!)
(D) (4!)(10!)
(E) (4!)(6!)(10!)
For a set of Counting Practice Problems for the GMAT, as well as the OA & OE for this particular question, see:
https://magoosh.com/gmat/2015/counting-p ... -the-gmat/
Mike
Magoosh GMAT Instructor
https://gmat.magoosh.com/
https://gmat.magoosh.com/
