medium · GMAT Quant
For a logistics routing network, total latency efficiency is modeled by the sum S = sum_k=1^40 dfrac1k(k+1) = dfrac11 · 2 + dfrac12 · 3 + dots + dfrac140 · 41.
What is the exact value of S?
- dfrac3940
- dfrac4041
- dfrac4142
- dfrac141
- dfrac8041
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