|
4.
|
In
the series 2, 6, 18, 54, ...... what will be the 8th term ?
|
|
A.
|
4370
|
B.
|
4374
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|
C.
|
7443
|
D.
|
7434
|
|
Answer: Option B
Explanation:
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 = ar8-1 = ar7 = 2 x 37 = (2 x 2187) = 4374.
