a milkman makes a profit of 20% on the sale of milk. If he were to add 10% water to the milk, by what % would his profit increase?  Pick one:
A) 50 %  B) 60 %  C) 70 %  D) 80 %  E) 40 %
let he sells 100 lit of milk @ 120 rs. means his cost price must b 100 to gain 20% profit.   Nw he adds 10% milk ie total milk z 110 lit.   Now he will get 132 rs. by selling 110 lit f milk (120*110/100)   total profit = 32 rs   increased profit =12 rs   %age increase= 12/20= 60 %   ANSWER:60 %
<result>B</result>
a milkman makes a profit of 20% on the sale of milk. If he were to add 10% water to the milk, by what % would his profit increase?