Answered

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How many five-letter sequences are possible that use the letters c, p, c, p, z

Sagot :

Answer:

To find possible number of ways the five letter sequence

Given letters are c, p, c, p, z

Total number of provided letter is 5

p and c is repeated twice

Length of sequence is 5

The possible ways are

[tex]=\frac{5!}{2!\times2!}[/tex][tex]\begin{gathered} =\frac{5\times4\times3\times2!}{2!\times2!}=\frac{5\times4\times3}{2}=5\times2\times3 \\ =30 \end{gathered}[/tex]

Answer is:30

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