Select the one which is different from other three.
20172017
Select the one which is different from other three.
Answer: A. GHST — In alphabet-classification questions, letters are checked against the ‘opposite letters’ rule: each letter’s forward position (A=1 … Z=26) and its backward…
- A.
GHST
- B.
EVFU
- C.
KPLO
- D.
IRJQ
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Correct answer: A
In alphabet-classification questions, letters are checked against the ‘opposite letters’ rule: each letter’s forward position (A=1 … Z=26) and its backward position add up to exactly 27, so position n pairs with position (27 − n) — for example A–Z, E–V, G–T. A four-letter group here is built by placing two such opposite-letter pairs side by side: the 1st–2nd letters form one pair and the 3rd–4th letters form another.
Group | 1st–2nd letters | 3rd–4th letters | Both pairs opposite (sum to 27)? |
|---|---|---|---|
EVFU | E–V (5 + 22 = 27) | F–U (6 + 21 = 27) | Yes |
KPLO | K–P (11 + 16 = 27) | L–O (12 + 15 = 27) | Yes |
IRJQ | I–R (9 + 18 = 27) | J–Q (10 + 17 = 27) | Yes |
GHST | G–H (7 + 8 = 15) | S–T (19 + 20 = 39) | No |
Independent check on GHST: taken individually, G is still opposite T (7 + 20 = 27) and H is still opposite S (8 + 19 = 27) — so all four letters ARE linked by the opposite-letter relationship. But they are arranged as (letter, next letter, opposite of the next letter, opposite of the first letter) instead of two side-by-side opposite pairs, so the shared side-by-side structure fails only here.
GHST is the group that breaks the pattern, so it is the one that is different from the other three.