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Which term of the G.P. 2, 8, 32, ... is 131072?
A9th
B10th
C7th
D8th
Answer & Solution
Correct answer: A. 9th
Here 2(4)^(n-1) = 131072 gives 4^(n-1) = 65536 = 4^8, so n = 9.
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