1.

Five different books (A, B,nC, D and E) are to be arranged on a shelf. Books C and D are to be arrangednfirst and second starting from the right of the shelf. The number of differentnorders in which books A, B and E may be arranged is

A. 5!
B. 3!
C. 2!
D. 3! * 2!
Answer» C. 2!


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