Challenge for the Weak 1 - P3
Contributed by: cauchy
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Difficulty: 9
This problem is tagged with cw, cw1.
Calculate $L = \lim_{n \to \infty} \sum_{k=0}^{n} \frac{k+1}{10^k}$.
A. $L = \infty$
B. $L = \frac{10}{9}$
C. $L = \frac{10}{81}$
D. $L = \frac{1000}{9}$
E. $L = \frac{100}{81}$
F. $L = \frac{9}{10}$
Your answer should be a single capitalized letter, e.g. "A".
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