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.Com
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) (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!
===========
Cheers,
Stan H.
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