Three of the following four letter pairs are alike in a certain way. Choose the one that does not belong to the group.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → LQ
Two letters are opposite letters when their places in the alphabet add up to 27 (A–Z, B–Y, C–X, …).
Option (1) NM — N (14) + M (13) = 27: opposite letters.
Option (2) PK — P (16) + K (11) = 27: opposite letters.
Option (3) LQ — L (12) + Q (17) = 29: not opposite letters (the opposite of L is O).
Option (4) TG — T (20) + G (7) = 27: opposite letters.
Three pairs are opposite letters; LQ is not, so it is the odd one out.