Question

Four letter-cluster pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.

• A. GIHJ : FLGK
• B. ZYAX : YZZY
• C. PVQU : OWPV
• D. EHFG : DIEH

Hint:

Write down the numerical positions of letters (A=1, B=2, ..., Z=26) to quickly identify the addition or subtraction pattern between letter pairs.

Answer 1

The Correct Option is A

Strategy:

We need to identify the pattern used to transform the first letter cluster into the second letter cluster for each pair and find the pair that does not follow the common rule.

Let's analyze the shift in position for corresponding letters in each pair (1st letter to 1st, 2nd to 2nd, etc.). (A) GIHJ : FLGK

G (7) \(\rightarrow\) F (6): -1
I (9) \(\rightarrow\) L (12): +3
H (8) \(\rightarrow\) G (7): -1
J (10) \(\rightarrow\) K (11): +1
Pattern: \(-1, +3, -1, +1\)
(B) ZYAX : YZZY

Z (26) \(\rightarrow\) Y (25): -1
Y (25) \(\rightarrow\) Z (26): +1
A (1) \(\rightarrow\) Z (26): -1
X (24) \(\rightarrow\) Y (25): +1
Pattern: \(-1, +1, -1, +1\)
(C) PVQU : OWPV

P (16) \(\rightarrow\) O (15): -1
V (22) \(\rightarrow\) W (23): +1
Q (17) \(\rightarrow\) P (16): -1
U (21) \(\rightarrow\) V (22): +1
Pattern: \(-1, +1, -1, +1\)
(D) EHFG : DIEH

E (5) \(\rightarrow\) D (4): -1
H (8) \(\rightarrow\) I (9): +1
F (6) \(\rightarrow\) E (5): -1
G (7) \(\rightarrow\) H (8): +1
Pattern: \(-1, +1, -1, +1\)
Conclusion:
Pairs (B), (C), and (D) follow the pattern \(-1, +1, -1, +1\). Pair (A) follows a different pattern.

The different pair is GIHJ : FLGK.