Question:

Complete the series: B2, D4, G7, K11, ?

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For mixed letter-number series, compute positions and differences for both separately.
  • O14
  • N15
  • P16
  • Q17
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The Correct Option is A

Solution and Explanation

Step 1: Analyze letters — Positions: B(2), D(4), G(7), K(11) → Differences: +2, +3, +4 → Next: 11 + 5 = 16 → O(15)? Letter O (15th) → matches option (a).
Step 2: Analyze numbers — 2,4,7,11 → Differences: +2, +3, +4 → Next: 11 + 5 = 16 → Number = 16 → But option (a) shows 14 → Actually check differences: 2→4(+2), 4→7(+3), 7→11(+4) → Next +5 = 16 → Number = 16 → Letter: K(11)+5 = P(16) → Correct option is (c) P16.
Step 3: Conclusion — Option (c) P16 is correct.
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