1 . Which of the following is the next number in the series: 3,6,9,18,27,54,81, -----?

  • A. 135
  • B. 151
  • C. 162
  • D. 182
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B ইউনিট : 2014-2015 || রাজশাহী বিশ্ববিদ্যালয় || 2014
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