R im m t n Converted interest rate o FP 1. 2. Monthly payments of P2,000 for 5 years with an interest rate of 12% compounded quarterly. Quarterly payments of P15,000 for 10 years with an interest rate of 8% compounded annually. Semi-annual payments of P150,000 with an interest rate of 6% compounded annually for 6 years. 3.