Wet sheet loses half its moisture in the first hour: time to lose 90% (or 99%)

1. A.
   $\frac{2\log 10}{\log 2}$
2. B.
   $\frac{\log 10}{\log 2}$
3. C.
   $\frac{3\log 10}{\log 2}$
4. D.
   $\frac{1}{2}\frac{\log 10}{\log 2}$

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1. A.
   $\ 2\log_{2}10$.
2. B.
   $\frac{4\log10}{\log2}$
3. C.
   $\ \log_{2}10$
4. D.
   $\frac{3\log10}{\log2}$

Tap an option to check your answer.