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      Question

      Find the wrong number in the given number series.

      5, 10, 30, 90, 540, 3240
      A 10 Correct Answer Incorrect Answer
      B 90 Correct Answer Incorrect Answer
      C 540 Correct Answer Incorrect Answer
      D 30 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      5 × 2 = 10

      10 × 3 = 30

      30 × 4 = 120

      120 × 5 = 600

      600 × 6 = 3600

      So, 120 should be in place of 90

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