Dalton Loaned $550,000 to Doc Holliday on August 24

Multiple Choice

Dalton loaned $550,000 to Doc Holliday on August 24. On February 8 of the following year, Doc paid to Dalton the $65,000 interest that had accumulated on the debt up to that time. What simple rate of interest was Dalton charging on this loan?

A) 21.90%
B) 25.68%
C) 21.79%
D) 74.32%
E) 24.69%