Question

Find the number of $5$ lettered palindromes which can be formed using the letter from the english alphabets.

Answer 1

Number of $5$ lettered palindrome
$1^{st}$ digit takes $26$
$2^{nd}$ digit takes $26$
$3^{rd}$ digit takes $26$
$4^{th}$ digit takes $2^{nd}$digit and
$5^{th}$ digit takes $1^{st}$ digit
So, $5$ letter palindrome can be formed$=26\times 26\times 26$
$=17576$