A dealer marks his goods 20% above the cost price. He then allows some discount on marked price so that he makes a profit of 10%, the rate of discount is
1
\(10\frac{1}{3}\% \)
2
\(9\frac{1}{3}\% \)
3
\(8\frac{2}{3}\% \)
4
\(8\frac{1}{3}\% \)
5
None of these