Question

If the position of the first letter of English alphabet is interchanged with the position of the fourteenth letter, second letter with fifteenth letter, and so on, in such a way that M is interchanged with Z, then which of the following letters will be 7th to the right of 13th letter from the right?

• A. U
• B. G
• C. H
• D. I

Answer 1

The correct option is C H

It means that the first half of the alphabet is interchanged with second half of the alphabet. After making changes, nth letter from the left will be $(n+13)$th letter of original series, ie English alphabet; If $n$ is less than $14$. But if $n$ is more than $13$, $n$th letter from left will be $(n-13)$th letter from left.
In the given equation, we have to find out (13 - 7 =) 6th letter from right $\Rightarrow$ (26 - 6 + 1 =) 21st letter from the left. Hence, required letter's position is more than 13; therefore the required letter is (21 - 13 =) 8th letter from left of original series, ie H.