Question

A wet towel hung from a clothesline to dry loses moisture through evaporation at a rate proportional to its moisture content. After 1 hour, the towel has lost 40% of its original moisture content. How long will it take the towel to lose 80% of its original moisture content?
A) 2.15
B) 4.95
C) 3.95
D) 3.15
E) 4.15

Answer

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