2021 · Q104
The English alphabet is reordered in the following manner: The first 6 letters are written in opposite order, the next 6 letters are written in opposite order and so on. At the end, Y is interchanged with Z. Which one of the following is the fourth letter to the right of the 13th letter?
General Mental Ability, Quantitative Aptitude and StatisticsLogical reasoning
- AN
- BO
- CM
- DI
Explanation
Reversing each block of six letters gives FEDCBA LKJIHG RQPONM XWVUTS, and swapping Y and Z appends ZY — the reordered alphabet is F,E,D,C,B,A,L,K,J,I,H,G,R,Q,P,O,N,M,X,W,V,U,T,S,Z,Y. The 13th letter is R, and the fourth letter to its right is the 17th letter, N. Hence (A) N is correct.