The question is given from ncert Book of class 10th Chapter no. 5 Ex. 5.3 Q. 2 (iii). In the following question you have to find the sum of of the question given above & give the solution of the question briefly.
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It is an A.P.,
in which, a= -5, d= -8-(-5)=-3, l=-230
First calculate the number in series…..
l=a+(n-1)d
-230=-5+(n-1)-3
-225=-3n + 3
3n=228
n=76.
Now,
Sum of the series = n/2 (a+l)
76/2 (-5-230)
38 * -235 = -8930.
So, the sum of your series would be -8930.