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What should come in place of the question mark (?) in the given series based on the English alphabetical order? LFC, IDZ, FBW, CZT, ZXQ, ?
XZR
UWM
XYP
WVN
WVN
Observe the pattern for each of the three positions independently: each letter moves backwards by 3, 2, and 3 positions respectively in each step.
Observe the pattern for each of the three positions independently: each letter moves backwards by 3, 2, and 3 positions respectively in each step.
Analyze the first letter of each triplet
L (12) → I (9) → F (6) → C (3) → Z (26) → W (23). The pattern is -3 for each step (L-3=I, I-3=F, F-3=C, C-3=Z, Z-3=W).
Analyze the second letter of each triplet
F (6) → D (4) → B (2) → Z (26) → X (24) → V (22). The pattern is -2 for each step (F-2=D, D-2=B, B-2=Z, Z-2=X, X-2=V).
Analyze the third letter of each triplet
C (3) → Z (26) → W (23) → T (20) → Q (17) → N (14). The pattern is -3 for each step (C-3=Z, Z-3=W, W-3=T, T-3=Q, Q-3=N).
A: XZR is wrong because it does not follow the -3, -2, -3 sequence; B: UWM is wrong as the second letter U does not match the V result; C: XYP is wrong as all three letters deviate from the calculated pattern.
D is correct because applying the respective sequences of -3, -2, and -3 to the last term (ZXQ) results in W, V, and N.
In alphabetical series, always convert letters to their numerical positions (A=1, Z=26) to simplify subtraction patterns, and remember that when going below A, wrap around to Z.
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