In the series 2, 6, 18, 54, ...., what will be the 8th term ?
A. 4370
B. 4374
C. 7443
D. 7434
Answer: Option B
Solution(By Examveda Team)
Clearly, 2 × 3 = 6, 6 × 3 = 18, 18 × 3 = 54,..............S, the series is a G.P. in which a = 2, r = 3
∴8th term = ar(8 - 1)= ar7 = 2 × 37 = (2 × 2187) = 4374
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