Calculate the sum of given series: 1/3, 1/9, 1/27, 1/81……………..
(A)
1/4
(B)
1/3
(C)
1/2
(D)
1
Answer: (C)
Explanation:
The given series is an infinite GP, whose sum is given by Sn=a/(r-1) Where, a=first term of series, r=common ratio. Therefore, Sn=(1/3)/(1-1/3) Sn=1/2
Quiz of this Question
Please comment below if you find anything wrong in the above post