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What should come in place of ? in the given series based on the English alphabetical order? GMC, JPF, MSI, PVL, ?
RYP
QXO
SYO
QZP
SYO
Observe the first, middle, and last letters independently: the first letters increase by +3, the middle letters increase by +6, and the last letters increase by +3.
Observe the first, middle, and last letters independently: the first letters increase by +3, the middle letters increase by +6, and the last letters increase by +3.
Analyze the first letters of each cluster
G (7), J (10), M (13), P (16). The pattern is +3. The next letter is 16 + 3 = 19, which is S.
Analyze the middle letters of each cluster
M (13), P (16), S (19), V (22). The pattern is +3. Wait, check the original: M(13), P(16), S(19), V(22). The next letter is 22 + 3 = 25, which is Y.
Analyze the last letters of each cluster
C (3), F (6), I (9), L (12). The pattern is +3. The next letter is 12 + 3 = 15, which is O.
A: RYP is incorrect because the middle letter sequence requires Y (25) and the last requires O (15). B: QXO is incorrect as the first letter must be S. D: QZP is incorrect as the first letter must be S and the middle/last letters do not match the +3 increment sequence.
C is correct because the series follows a consistent +3 increment for the first, middle, and last letters in each cluster, resulting in S, Y, and O.
For alphabetical series, always convert letters to their numerical positions (A=1, Z=26) first to identify arithmetic progressions easily.