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Word Question

mustish1
mustish1 asked
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Last Modified: 2012-06-22
Both are same question but why one use the permutation and other combination ? Thanks.

1. How many different strings can be formed by rearranging the
letters in the word ABABA ?
C(5, 3) = 10

AAABB
AABAB
AABBA
ABAAB
ABABA
ABBAA
BAAAB
BAABA
BABAA
BBAAA

2. How many different ways are there to rearrange the letters in the word GOURMAND?
P(8,8)

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