Choose the combination of letters which is different from others:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → BYHT
Two letters are opposite letters when they are the same distance from the two ends of the alphabet, so their places add up to 27 (A–Z, B–Y, C–X, ...).
Option (1) BYDW — B (2) + Y (25) = 27 and D (4) + W (23) = 27: two pairs of opposite letters.
Option (2) BYHT — B (2) + Y (25) = 27, but H (8) + T (20) = 28; the opposite of H is S, not T, so BYHT is the odd one out.
Option (3) EVFU — E (5) + V (22) = 27 and F (6) + U (21) = 27: two pairs of opposite letters.
Option (4) AZCX — A (1) + Z (26) = 27 and C (3) + X (24) = 27: two pairs of opposite letters.