Aptitude | Progressions | Question 4
Find the Sum of series: 10, 7, 4, 1, -2
(A) 40
(B) 21
(C) 20
(D) 18
Answer: (C)
Explanation: Sum of series = (n/2)[2a+(n-1)d]
= 20
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Last Updated :
28 Jun, 2021
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