A dishonest milkman adds some water into pure milk but he claims to sell milk at cost price and still makes a profit of 20%. The volume of water added to the mixture is? (In percent)
1
\(32\tfrac{2}{3} \%\)
2
\(16\tfrac{2}{3} \%\)
3
\(16\tfrac{4}{3} \%\)
4
\(33\tfrac{1}{3} \%\)
5
None of these