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In a store window, there was a box of berries having a total weight of 200 kg. The berries were 98% 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?

 Jan 27, 2025
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In a store window, there was a box of berries having a total weight of 200 kg. The berries were 98% 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?     

 

You're starting with 200 kg of berries, and 98% of that is water.     

Since they're 98% water, that means that there's 2% of solid stuff.     

2% of 200 kg means that there are 4 kg of solid stuff.     

 

Some of the water evaporates in the sun, but the solid stuff doesn't.     

So, after the evaporation, there still remains the same 4 kg of solid stuff.     

Since the new water content is 95%, that means that now the solid stuff is 5%.     

 

So 2 kg (the solid stuff) is 5% of the total weight.     

 

That means the new total weight is 40 kg.     

.     

 Jul 3, 2025

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