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      Question

      Select the number from among the given options that can

      replace the question mark ‘?’ in the following series. 30, 34, 42, 58, ‘?’, 154
      A 88 Correct Answer Incorrect Answer
      B 90 Correct Answer Incorrect Answer
      C 84 Correct Answer Incorrect Answer
      D 85 Correct Answer Incorrect Answer

      Solution

      30 + 4 = 34 34 + 8 = 42 42 + 16 = 58 58 + 32 = 90 90 + 64 = 154

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