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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 95%, by weight. What was the total weight of the berries after two days, in kg?

 

The answer is not 100, 198.2 or 192

 

Thanks for your help

 Nov 3, 2023
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Originally, the berries weighed 200 kg and were 99% water, which means 198 kg of the berries was water and the remaining 2 kg was non-water content, which does not evaporate. Two days later, the berries still have 2 kg of non-water content, which now represents 5% of the weight as 95% is now water. To get the total weight of the berries (which is 100%), we multiply this by 5% by 20, which gives us 20*2kg=40  kg.

 Nov 3, 2023

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