Fresh grapes contain 70% water by weight and raisins obtained by drying fresh grapes contain 25% water by weight. How many kgs of fresh grapes are needed to get 30kgs of raisins?
Choose the correct choice from the following options
A) 75 kgs	B) 64kgs	C) 72 kgs	D) 65 kgs	E) 70 kgs
The weight of non-water in 30 kg of dried grapes (which is 100-25= 
<gadget id="calculator">100-25</gadget>
<output>75</output>
75% of whole weight) will be the same as the weight of non-water in x kg of fresh grapes (which is 100-70= 
<gadget id="calculator">100-70</gadget>
<output>30</output>
30% of whole weight),   so 30*0.75= x*0.3   --&gt; x = 75.   75 kgsnswer: 75 kgs.
<result>A</result>
Fresh grapes contain 70% water by weight and raisins obtained by drying fresh grapes contain 25% water by weight. How many kgs of fresh grapes are needed to get 30kgs of raisins?