Mr. Ram Lal is planning to take a loan of Rs. 15,000,000 from a nationalised bank at 12% interest rate per year and requires paying it in 5 equal instalments payable at the end of each year. To calculate: (a) The annual instalment payable at the end of each of the next 5 yearsAnnual instalment payable can be calculated using the loan repayment formula, as follows:PMT = (P * r) / [1 - (1 + r)-n]Where,P = Rs. 15,000,000r = 12% per year, which is 1% per monthn = 5 years or 5 equal instalments per yearPMT = (15000000*0.01) / [1 - (1+0.01)^-5]PMT = 3639756.47 ≈ Rs. 3639756.5Annual instalment payable at the end of each of the next 5 years is Rs. 3639756.5 (approx). (b) A loan amortization schedule for the 5-year loan period.YearBeginning BalanceInstalmentInterestPrincipalEnding Balance120,000,0003,639,7561,800,0001,839,75618,160,244218,160,2443,639,7562,179,2141,460,54216,699,703316,699,7033,639,7561,988,7641,650,99215,048,711415,048,7113,639,7561,801,8241,837,93213,210,780513,210,7803,639,7561,614,8852,024,87111,185,909Loan amortization schedule for the 5-year loan period (c) The proportion of the instalment payable at the end of year 3 represents the principal repayment portionPrincipal repayment portion can be calculated as follows:Principal repayment portion = Instalment payable - Interest payable-[(Beginning balance of year 3 - Ending balance of year 3) + 1]Interest payable = Beginning balance of year 3 * r= 15148730.43 * 0.01= Rs. 151487.3(instalment payable = Rs. 3639756.5)Principal repayment portion = 3639756.5 - 151487.3 - [(18028629.56 - 15048710.45) + 1]= Rs. 1831949.75(instalment payable at the end of year 3 = Rs. 3639756.5)Proportion of the instalment payable at the end of year 3, represents the principal repayment portion = 1831949.75 / 3639756.5= 0.5033 ≈ 50.33%Therefore, the proportion of the instalment payable at the end of year 3 that represents the principal repayment portion is 50.33%.