Which of the following options should come in place of the question mark (?) in the given series based on the

Question

Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?CFI, KNQ, SVY, ADG, ?

Examoogle · Accepted Answer

The correct answer is Option B: ILO. Observe the first, second, and third letters separately. Each follows a pattern of jumping +8 positions in the English alphabet (C -> K -> S -> A -> I).

Step-by-Step Solution & Concepts:
Shortcut Trick: Observe the first, second, and third letters separately. Each follows a pattern of jumping +8 positions in the English alphabet (C -> K -> S -> A -> I).

Steps: Analyze 1st Letters: Positions: C(3), K(11), S(19), A(1), ?. Pattern: 3+8=11, 11+8=19, 19+8=27 (A), 1+8=9 (I). The 1st letter is I.. Analyze 2nd Letters: Positions: F(6), N(14), V(22), D(4), ?. Pattern: 6+8=14, 14+8=22, 22+8=30 (D), 4+8=12 (L). The 2nd letter is L.. Analyze 3rd Letters: Positions: I(9), Q(17), Y(25), G(7), ?. Pattern: 9+8=17, 17+8=25, 25+8=33 (G), 7+8=15 (O). The 3rd letter is O.

Answer: B is correct because the series follows a constant jump of +8 for each corresponding letter in the triplets, resulting in ILO.

Why options are wrong: A: IKM is incorrect as the 3rd letter O is required; C: JLN is incorrect as it does not follow the +8 progression; D: JMP is incorrect as it does not follow the +8 progression.

Exam Tip: Always convert letters to their numerical equivalents (A=1, B=2...) to identify arithmetic patterns in reasoning series.

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