Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
A certain office supply store stocks 2 sizes of self-stick [#permalink]
31 Dec 2008, 08:40
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?