



 
Hello Jyoti. You can solve this problem with algebra: 90% of the weight of the fresh grapes is water, so 10% is not water.
"Dried" grapes contain 20% water. So 80% of the weight of "dried" grapes is not water.
So DGW = 2kg / 80%. The equivalent weight in "dried" grapes is 2.5kg. Hope this helps,
 


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