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What should come in place of the question mark (?) in the given series based on the English alphabetical order? MGA, HBV, CWQ, XRL, ?
SGM
SMG
GMS
GSM
SMG
Observe the first, second, and third letters of each cluster independently; the series follows cyclic -5, +12, +11 shifts respectively.
Observe the first, second, and third letters of each cluster independently; the series follows cyclic -5, +12, +11 shifts respectively.
Analyze the first letter of each cluster
M(13) → H(8) → C(3) → X(24). Patterns: 13-5=8, 8-5=3, 3-5=24(X). Following this, 24-5 = 19, which is S.
Analyze the second letter of each cluster
G(7) → B(2) → W(23) → R(18). Patterns: 7-5=2, 2-5=-3(+26)=23, 23-5=18. Following this, 18-5 = 13, which is M.
Analyze the third letter of each cluster
A(1) → V(22) → Q(17) → L(12). Patterns: 1-5=-4(+26)=22, 22-5=17, 17-5=12. Following this, 12-5 = 7, which is G.
A: SGM is incorrect as the third letter must be G, not M. C: GMS is incorrect as the first letter must be S, not G. D: GSM is incorrect as the second letter must be M, not S.
B is correct because the pattern follows a consistent -5 position shift for all three letters in the clusters (MGA → HBV → CWQ → XRL → SMG).
For alphabetical series, always convert letters to their numerical positions (A=1, Z=26) to quickly identify arithmetic shifts instead of manual counting.
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