the dairy condensed milk has only 20% water while the cow milk has 90% water. How many litres of milkmaid will be obtained from 72 litres of milk?
option
a)7.2l
b)8l
c)9l
d)14.4l

• answer is 9l
  milk in 72 liters is7.2l (10%)
  
  now 80% of x=7.2
  so answer is 9L
• 8 years agoHelpfull: Yes(7) No(5)
• let x litres milkmaid can be obtained.
  condensed milkmaid has 80% milk
  While cow milk has 10% milk
  So 80/100(x)=10/100(72)
  x=9L
  NOTE- Quantity of milk in milk is equal to the quantity of milk in cow milk .
• 8 years agoHelpfull: Yes(5) No(0)
• dairy condensed milk has milk= (100-20)%= 80%
  cow milk has milk = (100-90)%= 10%
  ratio of milk of cow to dairy= 10/80 which should be equal x/72.(where x is the required amount of milk),
  
  so 1/8 = x/72
  hence x= 9L
• 8 years agoHelpfull: Yes(4) No(0)
• 7.2 gyyyyyyyy
• 8 years agoHelpfull: Yes(0) No(0)