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In a store window, there was a box of berries having a total weight of 200 kg.  The berries were 99% water, by weight.  After two days in the sun, the water content of the berries was only 90%, by weight.  What was the total weight of the berries after two days, in kg?

 Jul 24, 2024
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\(1\% * 200 = 2\)            this means that only 2 kg were not water. 

 

let x be the new amount

\(2 = 10\%x\)

 

solve for x

\(2(10)=x\\ x=20\)

 

20kg is the answer. 

 Jul 24, 2024
edited by BRAINBOLT  Jul 24, 2024

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