If grapes are 92% water and raisins are 20% water, then how much did a quantity of raisins, which currently weighs 14 pounds, weigh when all the raisins were grapes? (Assume that the only difference between their raisin-weight and their grape-weight is water that evaporated during their transformation.)
Choose the correct choice from the following options: A) 25 pounds B) 46 pounds C) 92 pounds D) 100 pounds E) 140 pounds
Since only water evaporates, then the weight of pulp (non-water) in grapes and raisins is the same. Thus 0.08*{weight of grapes}=0.8*{weight of raisins} --&gt; 0.08x = 0.8*14 --&gt; x = 140.   Answer: 140 pounds.
<result>E</result>
If grapes are 92% water and raisins are 20% water, then how much did a quantity of raisins, which currently weighs 14 pounds, weigh when all the raisins were grapes? (Assume that the only difference between their raisin-weight and their grape-weight is water that evaporated during their transformation.)