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What should come in place of the question mark (?) in the given series based on the English alphabetical order? VCF PWZ JQT DKN ?
EHX
XEH
XHE
EXH
XEH
Analyze the position shifts for each of the three letter positions across terms (1st letter: +3, 2nd letter: +5, 3rd letter: +7). Apply this to DKN.
Analyze the position shifts for each of the three letter positions across terms (1st letter: +3, 2nd letter: +5, 3rd letter: +7). Apply this to DKN.
Analyze 1st Letter Position
Looking at the first letters: V (22), P (16), J (10), D (4). Each step decreases by 6 (22 - 6 = 16, 16 - 6 = 10, 10 - 6 = 4). Continuing this, 4 - 6 = -2 (which corresponds to 26 - 2 = 24, letter X).
Analyze 2nd Letter Position
Looking at the second letters: C (3), W (23), Q (17), K (11). Note that C can be viewed as 29 (26 + 3). The differences are 29 - 23 = 6, 23 - 17 = 6, 17 - 11 = 6. Continuing this, 11 - 6 = 5, which corresponds to letter E.
Analyze 3rd Letter Position
Looking at the third letters: F (6), Z (26), T (20), N (14). F can be viewed as 32 (26 + 6). The differences are 32 - 26 = 6, 26 - 20 = 6, 20 - 14 = 6. Continuing this, 14 - 6 = 8, which corresponds to letter H.
Combine Letters
Combining the calculated letters for the missing term gives X, E, and H, resulting in XEH.
A: EHX has wrong order and positions. C: XHE has incorrect 2nd and 3rd letters swapped. D: EXH starts with E instead of X.
B is correct because the series follows independent positional shifts of -6 for the 1st letter, -6 for the 2nd letter, and -6 for the 3rd letter starting from DKN, yielding XEH.
For multi-letter series questions, always analyze each character position independently rather than trying to decode the entire word as a single entity.
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