Consider the word ROTOR. Whichever way you read it, from left to right or from right to left, you get the same word. Such a word is known as palindrome. Find the maximum possible number of 5-letter palindromes ?
Options are:
A) 17756 B) 17576
C) 12657 D) 12666
Options are:
A) 17756 B) 17576
C) 12657 D) 12666
1 Answer
Feb 28, 2018
The answer is B
Explanation:
A word is a palindrome if the 4th letter matches the 2nd and the fifth letter matches the 1st, and the 3rd letter can be chosen freely.
Since there are
So