Aptitude | Arithmetic Aptitude 4 | Question 3
7 + 72 + 73………..76 =?
(A) 140136
(B) 142156
(C) 133256
(D) 137256
Answer: (D)
Explanation:
Given series is a G. P. with a = 7, r = 7 and n = 6
∴ Sn = a(rn-1) / (r-1)
∴ Sn = 7(76-1) / 6
Sn = = 137256
Quiz of this Question
Last Updated :
28 Jun, 2021
Like Article
Save Article
Share your thoughts in the comments
Please Login to comment...