Math Word Problem?! =]?
Ross wants to make up nonsense words. He wants each word to have exactly 3 of the following letters : A, B, C, and D. No letter can be used more than once in a nonsense word. For example, "AAB" is not a nonsense word. What si the maximum number of ( distinct ) nonsense words that Ross can make up? ( The order of the letters must be considered. Example : "ABC" and "CBA" are two distinct nonsense words.)
A. 6
B. 9
C. 24
D. 27
E. 64
Comments
64
Check this out, it will show you all those problems
http://www.mathsisfun.com/combinatorics/combinatio...