Jay discounts a 100-day note for 25,000 at 13%. the effective rate of interest to the nearest hundredth percent is what?

Jay were able to get a discount in a 100-day note which 25000 dollars and get a 13% discount. 

Let's solve for the effective rate interest of this 100-day note:
=> 25 000 * .13 = 3 250 dollars is the discount. 
Thus, the 13% discount that he got is 3 250