The ratio of water to milk in a 15 litre solution is 1:4. The shopkeeper adds some milk to make the ratio to 1:5. How many litres of milk was added?

• ans: 3 L
  Exp:
  15*1/5=3L water
  15*4/5=12L Milk
  now, to add x L milk
  3/12+x=1/5
  after solve it
  x=3
• 11 years agoHelpfull: Yes(9) No(1)
• Water=1/5 milk=4/5
  (1/5)*15litres = 3litres of water
  (4/5)*15litres = 12litres of milk
  Now we know water quantity is same only milk is added so,
  1:5
  (1/5)*x=3litres
  X=18 litres
  (5/6)*18 = 15litres of milk
  15-12= 3 litres
  There the answer is 3 litres of milk is added
• 5 years agoHelpfull: Yes(0) No(0)