Complete the series: 7, 21, 64, 192, 577, ________

Questions :

Complete the series: 7, 21, 64, 192, 577, ________

Options :

  • 1730
  • 1731
  • 1740
  • 1729

correct answer : b)

Explanation :

Pattern is ×3 + 0, 1, 0, 1 alternately 577×3+0 = 1731

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