85 kg of a mixture contains milk and water in the ratio 27 : 7. How much more water is to be added to get a new mixture containing milk and water in the ratio 3 : 1

• 5 kg.
  
  In 85 kg mixture, milk = 85*(27/34) and Water = 85*(7/34) kg.
  Let 'x' kg of water is added, so that new ratio of milk and water becomes 3:1, then
  85*(27/34) / [85*(7/34) + x] = 3/1
  => 85*27 = 3(595+34x)
  => 2295 = 1785 + 102x
  => 102x = 510 or x=5
• 7 years agoHelpfull: Yes(0) No(1)