Assume that the rate of evaporation of moisture from a wet fabric during drying

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Assume that the rate of evaporation of moisture from a wet fabric during drying process is
proportional to the amount of moisture present in the fabric. If 50 % of the moisture is evaporated
in the first 5 minutes then the time (min) taken to evaporate 90 % of the moisture is approximately

Options:

A . 9

B . 17

C . 22

D . 33

Answer: Option B

-NA-

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