It has 20 mixutre conatins mil and water in the ratio 3:5,replace 4 litres of mixture with 4 litres of
water what is the final ratio of milk and water.

• please mention question clearly now onwards.
  
  the total mixture quantity=20 litre.
  so,milk = 20*(3/8)=7.5
  water = 12.5 (20-7.5)
  
  when 4 litre removed,water and milk will become less in same ratio
  
  milk = 7.5 - (4*3/8) = 6 litre
  water = 12.5 - (4*5/8) = 10 litre
  
  when 4 litre water added ,
  water amount = 10+4 = 14.
  ratio = 6/14 = 3/7
• 13 years agoHelpfull: Yes(26) No(1)
• quantity of milk in 16 litres of mix=16*5/8=10 lit
  quantity of milk in 20 lit of new mix=10+4=14
  water in it=20-14=6
  milk:water=14:6=7:3
• 13 years agoHelpfull: Yes(2) No(9)
• volume of water=5/8*20;
  Volume of milk=3/8*20;
  Volume of milk remaining= 3/8*16; (4 litres taken out)
  =6
  Volume= remaining portion + 4litres (water)
  =5/8*16 +4
  =10+4
  =14
  milk:water =6:14 =3:7
• 13 years agoHelpfull: Yes(2) No(2)
• 3x+5x=20
  x=2.5
  milk = 3*2.5=7.5
  water= 5*2.5=12.5
  now remove 4 litre of mixture
  quantity of mixture left = 16 litre
  milk left = 3*16/8 = 6 litre
  water left = 5*16/8 = 10 litre
  Add 4 litre of milk to the mixture
  milk in mixture = 6+4 = 10 litre
  water = 10 litre
  Hence ratio = 10:10 = 1:1
  
• 13 years agoHelpfull: Yes(1) No(15)
• ankur,only last step is wrong.we r replacing 4l of water nor milk.
• 13 years agoHelpfull: Yes(1) No(3)
• ans is 7:33,3x+5x=20 so x=5/2.
  new ratio is 3x-4:5x+4 we get 7:33
  
• 13 years agoHelpfull: Yes(0) No(8)