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Question

# Fresh grapes contain 90% water by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 20kg of fresh grapes?

A
2kg
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B
2.4kg
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C
2.5kg
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D
3kg
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Solution

## The correct option is D 2.5kg90% of the weight of the fresh grapes is water, so 10% is not water. 10%∗20kg=2kg of totally waterless grapes. Dried grapes contain 20% water. So 80% of the weight of dried grapes is not water. 80%∗DriedGrapeWeight=2kg So Dried Grape Weight =2Kg80%=2.5kg.

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