Identical objects-permutations and combinations

Reference no: EM13126366

Wing has different books to arrange on a shelf: 4 blue, 3 green, and 2 red.

(a) In how many ways can the books be arranged on a shelf?

(b) If books of the same color are to be grouped together, how many arrangements are possible?

(c) In how many distinguishable ways can the books be arranged if books of the same color are identical but need not be grouped together?

(d) In how many ways can you select 3 books, one of each color, if the order in which the books are selected does not matter?

Reference no: EM13126366

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