The maximum possible sum of the
a.p(arithmetic progression) series 40,36,32,… is
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an= a+(n-1)d
0= 40+(n-1)*-4
-40/-4= n-1
10+1=n
n=11
0= 40+(n-1)*-4
-40/-4= n-1
10+1=n
n=11
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