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What should come in place of the question mark (?) in the given series: BDF, CEG, DFH, EGI, ?
FHK
FHJ
GHI
FGH
FHJ
Track the alphabetical progression of the first, second, and third letters independently by +1 step for each successive term.
Track the alphabetical progression of the first, second, and third letters independently by +1 step for each successive term.
Analyze First Letters
The first letters of each term are B, C, D, E, following a consecutive +1 forward pattern. The next letter after E is F.
Analyze Second Letters
The second letters of each term are D, E, F, G, also following a consecutive +1 forward pattern. The next letter after G is H.
Analyze Third Letters
The third letters of each term are F, G, H, I, following a consecutive +1 forward pattern. The next letter after I is J, giving us FHJ.
A: FHK is incorrect because the third letter K does not follow the sequence; C: GHI is incorrect because the first letter starts with G instead of F; D: FGH is incorrect because the sequence of second and third letters is wrong.
B is correct because each character position in the letter cluster advances by 1 step alphabetically, resulting in FHJ.
For letter cluster series, always break down the terms by individual character positions (1st, 2nd, and 3rd letters) to easily spot parallel arithmetic progression.
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