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Source: Princeton Review
Roger wants to arrange three of his five bookshelves. Two of the five books are duplicates and can not both be selected. In how many different ways can Roger arrange his books?
A. 12
B. 36
C. 42
D. 60
E. 128
The OA is C
Roger wants to arrange three of his five bookshelves. Two of the five books are duplicates and can not both be selected. In how many different ways can Roger arrange his books?
A. 12
B. 36
C. 42
D. 60
E. 128
The OA is C
