Fresh grapes contain 90% by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 5 kg of fresh grapes?
Choose the most appropriate option: A) 2 kg B) 2.4 kg C) 2.5 kg D) 10 kg E) 0.625
The weight of non-water in 5 kg of fresh grapes (which is 100-90= 
<gadget id="calculator">100-90</gadget>
<output>10</output>
10% of whole weight) will be the same as the weight of non-water in x kg of dried grapes (which is 100-20= 
<gadget id="calculator">100-20</gadget>
<output>80</output>
80% of whole weight), so 5âˆ—0.1=xâˆ—0.8--&gt; x=0.625   Answer: 0.625.
<result>E</result>
Fresh grapes contain 90% by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 5 kg of fresh grapes?