1. Riama's mother is willing to buy a house with a credit purchase for Rp. 580,000,000., In accordance with the agreement with the developer the time of payment of the house is 15 years, where payments are made in monthly installments. The interest rate charged on this installment payment is 7% per year. How much payment does Ms. Riama have to pay in installments every month?

2. Calculate the future value of savings of Rp. 1,000,000 deposited annually for 5 years, if the interest rate of 10% p.a is calculated annually. Problem 2: Ms. Ais wants to have Rp. 200,000,000 when she retires. For this purpose, she sets aside her salary at the end of the month, Rp. 500,000, to be saved at the Definite Bank with a savings interest rate of 9% p.a. how much time does it take to save? Question

3. A small trader plans to save Rp. 1,000,000 at the end of the month in order to get Rp. 200,000,000. if the interest on savings offered is 6% p.a how long should he save?