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Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which
Question

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)​

A.

QR−TU

B.

FG−HL

C.

WX−ZA

D.

DE−GH

Correct option is B

Logic: Letters are decreased by 3.

Facts & Explanation (Operation-wise):
QR–TU: Q + 3 = T, R + 3 = U

FG–HL: F + 2 = H, G + 5 = L (unequal difference)

WX–ZA: W + 3 = Z, X + 3 = A (cyclic continuation)

DE–GH: D + 3 = G, E + 3 = H

Final Answer: FG–HL does not follow the same +3 pattern.
Final Correct Option: (b)​

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