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      Question

      What will come in place of the question mark (?) in the

      following series? 15, 90, 450, ?, 5400, 10800 
      A 1572 Correct Answer Incorrect Answer
      B 1800 Correct Answer Incorrect Answer
      C 1852 Correct Answer Incorrect Answer
      D 1721 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ, 15 × 6 = 90 90 × 5 = 450 450 × 4 = 1800 1800 × 3 = 5400 5400 × 2 = 10800

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