in what ratio must water be mixed with milk to gain 20% by selling the mixture at cost price

• 100 liter milk sale has for 120 liter to make 20% profit
  100milk + 20 water=120 liter
  so water:milk =====1:5
• 11 years agoHelpfull: Yes(31) No(1)
• let the cost price be x
  To get the profit of 20%, the x need to be 1.2 times the new price
  So the actual quantity of milk to be sell=(x*100)/120=5x/6
  Now to make the quantity equal to x, water required=1-(5x/6)=x/6
  Therefore the ratio of water to milk =x/6:5x/6=1:5
• 12 years agoHelpfull: Yes(11) No(6)
• in 1:5 ratio must water be mixed with milk to gain 20% by selling the mixture at cost price.
  To gain 20% milk should be sold at 20% more value than cost price. But as the milk is sold at cost price, so to make gain of 20% one must add 20% water with the milk.
• 12 years agoHelpfull: Yes(5) No(6)
• 1:5
  cp=sp
  let sp=1
  cp=100/120 *1
  5/6
  by mixture and alligation cp of water =0
  cp of milk=1
  0 1
  5/6
  1/6 5/6
  ratio would be (1/6)/(5/6)=1:5
• 9 years agoHelpfull: Yes(3) No(0)