A 20 litre solution conatins oil and kerosene in the ratio 3:5,replace 4 litres of mixture with 4 litres of kerosene what will be the ratio of oil and kerosene?

• When 4 liters are taken out of 20ml, amount of oil in remaining 16 lt = 3/8 * 16 = 6
  Hence the remaining 10 litres would be kerosene
  Now additional 4 litres of kerosene is added to the solution
  So total quantity of kerosene = 14 litres
  Ratio of oil:kerosene = 6/14 = 3/7
  
• 11 years agoHelpfull: Yes(18) No(4)
• when we have 20 liter off solution in this oil=3 and kerosene=5 so total=8;
  and suppose xliter=3/8*20=15/2;
  and kerosene=5/8*20=25/2;
  and then we add 4 liter off keroscene so we add 4liter keroscene to mixuer;
  25/2+4=33/2;
  but we also remove 4 liter from mixtuer.
  so total is=15/2+33/2=48/2-4=20 liter.
  so ratio is 15/2/33/2=5/11
• 8 years agoHelpfull: Yes(2) No(3)