A milk vendor mixes water to 20 lt of milk such that the ratio of milk and water is 4:3. He sold the mixture at Rs. 12 per liter but bought the milk at Rs. 10 per liter. Find the profit % of the vendor.

• milk n water are in the ratio of 4:3.. n given milk is 20lit...implies..4*5:3*5 = 20:15 ie, 15 litres of water r added ..total mixture is 35lit... n cost price is 10*20=200 and selling price is 12*35=420 .. so the profit is (420-200)*100/200=110%
• 9 years agoHelpfull: Yes(2) No(0)
• cp=(100/(100+profit))*sp
  -->10=100*12/(100+p)
  -->p=20%
• 10 years agoHelpfull: Yes(0) No(2)