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What should come in place of the question mark (?) in the given series based on the English alphabetical order? FDW LJC RPI XVO ?
DBU
DUB
BDU
BUD
DBU
Observe the first, second, and third letters of each triplet separately. The pattern for each position follows a consistent +6 increment in alphabetical indexing.
Observe the first, second, and third letters of each triplet separately. The pattern for each position follows a consistent +6 increment in alphabetical indexing.
Analyze 1st Letters
F(6), L(12), R(18), X(24). The series increases by 6. X(24) + 6 = 30. Since there are 26 letters, 30 - 26 = 4, which is D.
Analyze 2nd Letters
D(4), J(10), P(16), V(22). The series increases by 6. V(22) + 6 = 28. 28 - 26 = 2, which is B.
Analyze 3rd Letters
W(23), C(3), I(9), O(15). The series increases by 6. O(15) + 6 = 21, which is U.
B: DUB implies incorrect 2nd/3rd sequence; C: BDU is a permutation of the correct letters; D: BUD is a permutation of the correct letters.
A is correct because every letter in the triplet follows a persistent +6 shift relative to the previous term's corresponding position.
For alphabet series, always convert letters to their numerical positions (A=1, Z=26) immediately to simplify complex shifts.
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