Question

Find the number of strings of length 10 of lower case letters of the alphabet, with repeated letters allowed, that begin with C or end with V. You may enter your answer as an expression containing powers, no need to calculate the exact value.

Answer 1

Answer:

So there will be $26^8$

Step-by-step explanation:

We have given that string is of length of 10 alphabet which starts with c and end with v

Repetition is allowed

First we have to fix first and last character of the string, that is c and v

Now we have left 26 -2 = 24 letter

So the number of string will be = $1\times 26\times 26\times 26\times 26\times 26\times 26\times 26\times 26\times 1= 26^{8}strings$

So there will be $26^{8}strings$ of 10 character of alphabet