Question

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

Answer 1

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Question - In the series 2, 6, 18, 54, ...... what will be the 8th term ?

Answer -

Clearly, 2 x 3 = 6, 6 x 3 = 18, 18 x 3 = 54,.....

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

Therefore 8th term = ar^8-1 = a^r7 = 2 x 3^7 = (2 x 2187) = 4374.

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Answer 2

Answer:

answer of this question is 4374