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What should come in place of the question mark (?) in the given series based on the English alphabetical order? BFH, CGI, DHJ, EIK, ?
FIL
GKM
EJL
FJL
FJL
Observe the first letter of each triplet, then the second, then the third individually to find three separate arithmetic progressions with a constant difference of +1.
Observe the first letter of each triplet, then the second, then the third individually to find three separate arithmetic progressions with a constant difference of +1.
Analyze the first letters
B (2), C (3), D (4), E (5). The sequence is +1. The next letter must be 5 + 1 = 6, which corresponds to F.
Analyze the second letters
F (6), G (7), H (8), I (9). The sequence is +1. The next letter must be 9 + 1 = 10, which corresponds to J.
Analyze the third letters
H (8), I (9), J (10), K (11). The sequence is +1. The next letter must be 11 + 1 = 12, which corresponds to L.
A: FIL is incorrect because the second letter should be J, not I. B: GKM is incorrect because the first letter should be F, not G. C: EJL is incorrect because the first letter should be F, not E.
D is correct because the series follows a consistent pattern where each character in the triplet increments by 1 at every step (B,C,D,E тЖТ F; F,G,H,I тЖТ J; H,I,J,K тЖТ L), resulting in FJL.
For alphabetical series, always convert letters to their numerical positions (A=1, B=2...) to identify the arithmetic difference between terms rapidly.
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