Fresh grapes contain 80 percent water, while dry grapes contain 10 percent water. If the weight of dry grapes is 250 kg, what was its total weight, when it was fresh?
1000 kg
1100 kg
1225 kg
1125 kg
A
1100 kg
B
1000 kg
C
1225 kg
D
1125 kg
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Solution
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In 250 kg of dry grapes, there is (10100×250kg)=25 kg water and (250−25) kg =225 kg of pulp. ∵ In fresh grapes, there is 80% water and 20% pulp. ∴20% of Total weight of fresh grapes =225 kg ⇒20100× Total;weight =225 ⇒ Total weight =225×10020=1125 kg
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