1.Fresh Grapes contain 90% water by wt. Dried grapes contain 20% water by %age.
What will b wt of dried grapes when we begin with 20 kg fresh grapes?

• 2.5 will be answer
  in 20 kg there was 18 kg water amd the rest 2 kg was pure grapes which will never reduce.
  So when the grapes get dried and there is only 20% water then rest 80 kg will be pure grapes which is 2 kg.
  let x be total quantity then -----x*80/100=2
  on solving x=2.5
• 8 years agoHelpfull: Yes(20) No(0)
• 2.5kg is answer
  puregrape=10% of 20=2kg
  puregrape=80% of drygrape
  2 = 80% * drygrape
  drygrape= 2*100/80 =5/2=2.5kg
• 8 years agoHelpfull: Yes(9) No(0)
• ans 25
  fresh graps water=90%
  flush=10%
  weight of fresh grapes in flush=20 .so (10/100)*x=20
  weight=20
  even when the fruit was dried it does not change the weight of flush so
  after dried water = 20% and flush= 80%
  (80/100)*x=20
  so weight of dried fruit is 25
• 8 years agoHelpfull: Yes(4) No(16)
• (10%*20)=(80%*x)
  0.1*20=0.8*x
  X=2.5kg
• 7 years agoHelpfull: Yes(3) No(0)
• (80*x)/100=(10*20)/100 :(-> equating the core part in both)
• 8 years agoHelpfull: Yes(0) No(0)