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Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order? GHM, IJO, KLQ, MNS, OPU,?
QSV
QRW
QSW
QRV
QSW
Look at each letter position independently across consecutive terms. The first, second, and third letters each advance by a fixed offset (+2) in the English alphabet.
Look at each letter position independently across consecutive terms. The first, second, and third letters each advance by a fixed offset (+2) in the English alphabet.
Analyze First Letters
The first letters of the terms are G, I, K, M, O. Their alphabetical positions are 7, 9, 11, 13, 15, which form an arithmetic progression with a common difference of +2. Continuing this pattern, 15 + 2 = 17, which corresponds to the letter Q.
Analyze Second Letters
The second letters are H, J, L, N, P. Their positions are 8, 10, 12, 14, 16, also following a +2 increment. Continuing this pattern, 16 + 2 = 18, which corresponds to the letter R.
Analyze Third Letters
The third letters are M, O, Q, S, U. Their positions are 13, 15, 17, 19, 21, following a +2 increment. Continuing this pattern, 21 + 2 = 23, which corresponds to the letter W.
Combine and Conclude
Combining the next letters (Q, R, W) gives the final term QRW, which matches Option B.
A: QSV is incorrect because the second and third letters do not follow the +2 increment pattern. C: QSW is incorrect because the second letter is W instead of R. D: QRV is incorrect because the third letter is V instead of W.
B is correct because each letter in the triplet advances by +2 positions in the English alphabet, resulting in QRW.
Always break multi-letter series into individual letter streams to quickly spot independent positional patterns.
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