Numbers & Algebra

Answer : C

Explanation :

Since d = -2, maximum sum of the series will be sum of all the positive terms.
Least positive term of the series is 2 or 0 (both giving equal sum)
Let, 2 be the n^th term
2 = 60 + (n 1) - 2 
=> n = 30
Required sum = 30/2 (60 + 2) = 930