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A certain office supply store stocks 2 sizes of self-stick [#permalink]
31 Dec 2008, 08:40
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A certain office supply store stocks 2 sizes of self-stick notepads, each on 4 colors: blue, green, yellow, or pink. The store packs the note pads in packages that contain either 3 notepads of the same size and the same color or 3 notepads of the same size and of 3 different colors. If the order in which the colors are packed is not considered, how many different packages of the types described above are possible?