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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? ZTQ, XRO, VPM, TNK,?
RKL
RML
RLI
SMK
RLI
Analyze the letter series column-by-column from left to right using their alphabetical positions and constant backward steps (-2 or -3).
Analyze the letter series column-by-column from left to right using their alphabetical positions and constant backward steps (-2 or -3).
Analyze 1st Letters
The first letters are Z, X, V, T. Their alphabetical positions are 26, 24, 22, 20. Each letter decreases by 2. Thus, 20 - 2 = 18, which corresponds to R.
Analyze 2nd Letters
The second letters are T, R, P, N. Their alphabetical positions are 20, 18, 16, 14. Each letter decreases by 2. Thus, 14 - 2 = 12, which corresponds to L.
Analyze 3rd Letters
The third letters are Q, O, M, K. Their alphabetical positions are 17, 15, 13, 11. Each letter decreases by 2. Thus, 11 - 2 = 9, which corresponds to I.
Combine Letters
Combining the next letters gives RKL? Wait, let's re-verify K - 2: K is 11, 11 - 2 = 9 (I). So the term is R K I, which is Option C.
A: RKL has an incorrect final letter. B: RML has incorrect middle and final letters. D: SMK has incorrect first and second letters.
C is correct because each letter in the triplet decreases by 2 positions in reverse alphabetical order, yielding RKI.
Always verify positional values independently across all columns when dealing with multi-letter series questions in SSC and Railways exams.
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