Question 1 (a) Compute and fill in the blank involved in each of the following situations: Principal Rate Time Interest Simple Amount RM 15,0009% 1.25 years RM 20,250 90 days RM 20,756.25 4.5% 10 weeks RM 14,000 RM 54,300 8.5% RM 1000 (4 marks) (1) Determine the number of years for a sum of investment to grow to three times as much at a simple interest rate of 12 12% per year. (1 mark) (c) Carla Truss owes RM5,800 to her mother. She has agreed to repay the money in 10 months at an interest rate of 5.3%. Determine the amount she owe in 10 months. Compute the total interest she had pay. (1 mark) (a) Nally received a 120-day promissory note for RM20,000 which matures on 2 August 2020 with a simple interest rate of 5% per annum. She later discounted the note 60 days before the maturity date and obtained RM20,138.24. Determine the date of the note, maturity value, bank discount, and bank discount rate. (4 marks)