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      Question

      (?)2 + 5.113 = 26.92

      – 28.03  What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.) 
      A 11 Correct Answer Incorrect Answer
      B 18 Correct Answer Incorrect Answer
      C 24 Correct Answer Incorrect Answer
      D 32 Correct Answer Incorrect Answer
      E 39 Correct Answer Incorrect Answer

      Solution

      (?)2 + 53 = 272 – 28 (?)2 + 125 = 729 – 28 (?)2 = 701 – 125 (?)2 = 576 ? = 24

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