Fresh grapes contain 90% by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 40 kg of fresh grapes?	Choose the correct choice
A) 5 kg  B) 2.4 kg  C) 2.5 kg  D) 10 kg  E) none of these
The weight of non-water in 20 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 40âˆ—0.1=xâˆ—0.8--&gt; x=5   5 kgnswer: 5 kg
<result>A</result>
Fresh grapes contain 90% by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 40 kg of fresh grapes?