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What should come in place of the question mark (?) in the given series based on the English alphabetical order? TUR FGD RSP DEB ?
NQP
NPQ
PNQ
PQN
PQN
Analyze the change in the first, second, and third letters of each triplet independently. Look for alternating patterns: -2, +2, -2 for first letters; +2, -2, +2 for second letters; etc.
Analyze the change in the first, second, and third letters of each triplet independently. Look for alternating patterns: -2, +2, -2 for first letters; +2, -2, +2 for second letters; etc.
Analyze positional mapping
Convert letters to positions: T(20), U(21), R(18) тЖТ F(6), G(7), D(4). The difference is -14 for each letter (20-14=6, 21-14=7, 18-14=4).
Verify pattern continuity
Apply -14 shift to the next block: F(6)-14 = -8 (add 26 = 18/R), G(7)-14 = -7 (add 26 = 19/S), D(4)-14 = -10 (add 26 = 16/P). Results in RSP.
Apply logic to find final term
From DEB: D(4)-14 = 16(P), E(5)-14 = 17(Q), B(2)-14 = 14(N). The result is PQN.
A: NQP is incorrect as the third letter should be 14 (N). B: NPQ is wrong due to shifted positions. C: PNQ is incorrect because the second letter is Q, not N.
D is correct because every letter in the triplet shifts backward by 14 positions in the alphabetical cycle to form the next term.
For alphabetical series, always test the difference between consecutive letters. If simple +n/-n doesn't work, test the difference between the word triplets themselves.
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