- There are 26 letters in English Alphabet with 'A'-taking 1st position. 'B' - 2nd position and so on 'Z' takes the 26th position.
- Similarly 'Z' takes the 1st position, 'Y'-2nd position and so on 'A' takes the 26th position. So the sum of the positions of any letter from the left end and from the right end is equal to 27.
- A candidate is advised to remember positions of letters from the left end and if the position is to be found from right end subtract its position from left end from 27.