I'm having some issues with the word problems. Can you show me how to do them.

Deturmine the number of difforent arrangements using the letters of the word ACCESSES that:

A. Begin with exactly two S's.

B Begin with at least two S's.

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- Jan 10th 2013, 10:54 AMTwinkiePermutations and Combinations
I'm having some issues with the word problems. Can you show me how to do them.

Deturmine the number of difforent arrangements using the letters of the word ACCESSES that:

A. Begin with exactly two S's.

B Begin with at least two S's. - Jan 10th 2013, 11:11 AMPlatoRe: Permutations and Combinations
- Jan 10th 2013, 11:30 AMTwinkieRe: Permutations and Combinations
Yes, I understand that ACCESSES is 8!/ 2x2x3! ,because there is 8 letters and two C's, 3 S's, and 2 E's.

So for A, I count all the S's as one in the top half of the equaision like 6!/2x2 ( Now I know what I was doing wrong befor, I was counting the S's as 2 not 1). Then I subtract the equasion without any S's ,So 5!/2x2 ,with the first answer to get the final answer. To get 150, I finally got it right. Thankyou so much! :)