Fresh grapes contain 90% by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 25 kg of fresh grapes?  Choose the correct choice from the following answers:	A) 2 kg	B) 2.4 kg	C) 3.12 kg	D) 10 kg	E) none of these
The weight of non-water in 25 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 25âˆ—0.1=xâˆ—0.8--&gt; x=3.12   Answer: 3.12 kg.
<result>C</result>
Fresh grapes contain 90% by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 25 kg of fresh grapes?