Posted by **unknown** on Monday, June 17, 2013 at 12:51am.

S=1 + 2(1/5) + 3(1/5)^2 + 4(1/5)^3 +5(1/5)^4…...........infinite......... If

s=a/b

,

where a and

b are coprime positive integers, what is the

value of a+b?

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