Fresh grapes contain 80% 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 most appropriate option:
A) 10 kg  B) 12 kg  C) 15 kg  D) 16 kg  E) 20 kg
From the question we know: 40kg * 80% = 32kg of water in the fresh grapes   40kg - 32kg of water = 8kg of non-water mass   We are looking for the weight of the dry grapes (X).   Since the question tells us that 20% of the weight of the dry graps is water and we know that 8kg is non-water mass we can set up the following equation:   X = 1/5(X) + 8kg   4/5(X) = 8kg   X = 10 kg   10 kgnswer- 10 kg
<result>A</result>
Fresh grapes contain 80% by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 40 kg of fresh grapes?