4. Carlo loaned $5000 on December 18, 2014 to his business partner who agreed to repay the amount with simple interest on March 01, 2015. How much would Carlo receive at the end of the period if he charged his business partner an interest rate of 3.2% pa.? How much of this amount is the interest? 5. The rate of return of a 182-day treasury bill with a face value of $20,000 is 5.25% p.a. Calculate the price on its issue date