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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? YES, ZGV, AIY, BKB,?
CMD
CME
CMF
CNE
CME
Observe the pattern of each position independently: the 1st letter increases by 1 (Y → Z → A → B → C), the 2nd letter decreases by 2 (E → G → I → K → M: actually increases by 2), and the 3rd letter follows a specific sequence.
Observe the pattern of each position independently: the 1st letter increases by 1 (Y → Z → A → B → C), the 2nd letter decreases by 2 (E → G → I → K → M: actually increases by 2), and the 3rd letter follows a specific sequence.
Analyze the first letter
Y → Z (+1), Z → A (+1), A → B (+1), B → C (+1). The first letter of the next term must be C.
Analyze the second letter
E → G (+2), G → I (+2), I → K (+2), K → M (+2). The second letter of the next term must be M.
Analyze the third letter
S → V (+3), V → Y (+3), Y → B (+3). Note: Y (25) + 3 = 28. 28 mod 26 = 2, which is B. Following this, B (2) + 3 = 5, which is E. The third letter of the next term must be E.
A: The third letter 'D' is incorrect as the pattern requires 'E'. C: The second letter 'F' is incorrect as the pattern requires 'M'. D: The first letter 'N' is incorrect as the pattern requires 'C'.
B is correct because the series follows a consistent pattern for each position: (Y+1, Z+1, A+1, B+1 = C), (E+2, G+2, I+2, K+2 = M), and (S+3, V+3, Y+3, B+3 = E), resulting in CME.
Always break down multi-letter series into individual character strands. If the sequence involves letters reaching Z, remember to wrap around to A (e.g., 26+1=A).
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