Problem 441. Drying sweater?

Created by AMITAVA BISWAS

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A sweater is revolving in a slow low power dryer and losing moisture at any moment at the constant rate 100% of its current moisture content in 100 minutes.
Veronica knew the sweater was x times its dry weight when she put her wet sweater from the washer to the dryer.
How many minutes she should wait so that the sweater weighs w times its dry weight?
Please try a general solution, the test suite may expand later.

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Last Solution submitted on Jan 12, 2020

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3 Comments

Jean-Marie Sainthillier on 21 Aug 2012

I understand the problem but not the tests

Jean-Marie Sainthillier on 29 Aug 2012

-1 :)

Jihye Sofia Seo on 13 Feb 2017

It seems like the water content halves every ~69 minutes. But the first sentence about 100% and 100 minutes are very confusing. If it is exponential decay, then water should never reach 0.

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Problem 441. Drying sweater?

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Last 200 Solutions

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Problem 441. Drying sweater?

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Last 200 Solutions

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Problem Recent Solvers25

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