SOLUTION: fresh grapes contain 80% of water while dry grapes contain 10% of water. If the weight of dry grapes is 500 then what is its total weight when it is fresh.

Question 1000706: fresh grapes contain 80% of water while dry grapes contain 10% of water. If the weight of dry grapes is 500 then what is its total weight when it is fresh.
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
Quantity of water in 500kg dry grapes(your problem doesn't say if lbs, kgs, grs, or what, so I used kg. You can call it anything you want):
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Q.Water= (10/100)*500 = 50 kg
Then, pulp of grapes = 500-50= 450 kg
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We get 20 kg pulp in 100 kg fresh grapes (fresh grapes:80%water, 20% pulp)
To get 450 kg pulp , we need fresh grapes:
= (100*450)/20 = 2250kg.
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