SOLUTION: How many permutations of the leters ABCDEFG contain (a)the string BCD (b)the string CFGA (c)the string BA & GF (d)the string ABC & DE (e)the string CBA & BED

Algebra ->  Permutations -> SOLUTION: How many permutations of the leters ABCDEFG contain (a)the string BCD (b)the string CFGA (c)the string BA & GF (d)the string ABC & DE (e)the string CBA & BED      Log On


   



Question 122836: How many permutations of the leters ABCDEFG contain
(a)the string BCD
(b)the string CFGA
(c)the string BA & GF
(d)the string ABC & DE
(e)the string CBA & BED

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
When a string of letters must remain intact the string can be
treated as a single leter
-----------------------
How many permutations of the leters ABCDEFG contain
(a)the string BCD
5!
-----------
(b)the string CFGA
4!
--------
(c)the string BA & GF
5!
-----------
(d)the string ABC & DE
4!
----------
(e)the string CBA & BED
3!
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Cheers,
Stan H.