Question

A man buys milk at 8.5 per liter and diluted it with water .he sell the mix at the same rate and thus gain 11.11.find the quantity of water mixed by him in every lit

Answer 1

You can assume milk 11.11rs/ltr or 22.22rs/ltr..(to make it easy)  Ans 111 ml or 0.111ltr
11.11--------111.10 %
10 - - - - - - - - - - 100%
       1000ml            x ml 
    11.11₹/ltr        0 ₹/@ltr 
                   10₹/ltr 
              10      :    1.11
10 ratio - - - - - 1000 ml
1.11 ratio - 111 ml