What should come in place of the question mark '?' in the following number series?

2, 6, 22, ?, 65814

This question was previously asked in
RRB Office Assistant 19 Sep 2020 Prelims Memory Based Paper Shift 2
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  1. 96
  2. 58
  3. 278
  4. 198
  5. 76

Answer (Detailed Solution Below)

Option 3 : 278
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2 + 22 = 6

6 + 24 = 22

22 + 28 = 278

278 + 216 = 65814

∴ 278 will come in place of question mark.

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