Complete the series given below:

15, 30, 45, 90, 135, 270, ?

  1. 320
  2. 340
  3. 400
  4. 405
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    Answer:(D) 405
    Explanation:-
    15 x 2 = 30
    30 x 1.5 = 45
    45 x 2 = 90
    90 x 1.5 = 135
    135 x 2 = 270
    270 x 1.5 = 405

    Hence, the answer is (D) 405.

    Anurag Mishra Professor Answered on 3rd June 2015.
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