8. A loan is to be repaid by annual installments of X at the end of each year for 10 years. You are given: (i.) The total principal paid in years 1-3 is 3000. (ii.) The total principal paid in years 6-8 is 4000. (a) Calculate the total interest paid for years 1, 2, 3, 6, 7, 8. (b) Calculate the total principal paid for years 4 and 5. 8. A loan is to be repaid by annual installments of X at the end of each year for 10 years. You are given: (i.) The total principal paid in years 1-3 is 3000. (ii.) The total principal paid in years 6-8 is 4000. (a) Calculate the total interest paid for years 1, 2, 3, 6, 7, 8. (b) Calculate the total principal paid for years 4 and 5