A milk seller buys milk at Rs 10 per litre and sells it at the same rate and makes a profit of 10% by adding water to it. How much water does he add to a litre of milk?

• 100 ml
  just do it by alligation and mixure....... cost price is (100/110)*10=>100/11.
  now 0 10
  100/11
  
  10-100/11 : 100/11
  ratio will be 1:10
• 10 years agoHelpfull: Yes(1) No(1)
• 1 litre-10rs
  gain=10%
  original mixed milk c.p=10-(10*10/100)=9
  
  so the ratio 10-9:9-0
  1:9(water,milk)
  
• 10 years agoHelpfull: Yes(1) No(1)
• ans is 1:10
• 9 years agoHelpfull: Yes(0) No(0)