Fresh grapes contain 90% water by weight while dried grapes
contain 20% water by weight. What is the weight of dry grapes available from
20 kg of fresh grapes?
(a) 2 Kg (b) 2.4 Kg
(c) 2.5 Kg (d) None of these

• Fresh grapes contain 90% water by weight while dried grapes
  contain 20% water by weight.
  
  20 kg fresh grapes contain 18 kg water and 2 kg solid material.
  
  If x is weight of dry grapes, then
  0.8x= 2 kg
  x= 2/0.8 = 20/8= 5/2=2.5 kg .. option c
• 11 years agoHelpfull: Yes(20) No(2)