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Question

Reasoning: 

In the series 2, 6, 18, 54, _, _, _ what will be the 8th term?

  • 4370
  • 4374
  • 7434
  • 7443
  • None of these
Answer- B

Clearly, 2x3 = 6

6x3 = 2x3x3 = 18

18x3 = 2x3x3x3 = 54

So the series is a G.P in which a=2, r=3

Then 8th term = 2x (3^7) = 4374


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