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      Question

      Which number will replace the question mark (?) in the

      following series? 5, 8, 20, 34, 76, 142, ?
      A 272 Correct Answer Incorrect Answer
      B 296 Correct Answer Incorrect Answer
      C 284 Correct Answer Incorrect Answer
      D 302 Correct Answer Incorrect Answer

      Solution

      5 Γ— 2 βˆ’ 2 = 8 8 Γ— 2 + 4 = 20 20 Γ— 2 βˆ’ 6 = 34 34 Γ— 2 + 8 = 76 76 Γ— 2 βˆ’ 10 = 142 142 Γ— 2 + 12 = 296

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