Management 3 Quantitative Methods Quiz #6 Solution courtesy of Meena Tafazzoli
The Problem A car dealer offers either 0% financing for 3 years or a $3,000 rebate on a $25,000 car. Assuming that you take the rebate (instead of the 0% financing) and can find a loan for 6% for 36 months, which deal gives you a smaller payment? 2
Pay 0% financing for 36 months My financing decision I want to buy a $25,000 car PLAN 1: Pay 0% financing for 36 months PLAN 2: Pay upfront with $3000 rebate, get a loan at 6% monthly payments (36 mos) =$25000/ 36 months = $694.94 monthly payment [1 point] = $25,000 upfront less the $3,000 rebate as a downpayment = $22,000 loan Continued on next slide
Finding the monthly payments on the loan (PLAN 2) Recall… PV (loan) = PV (loan payments) 22,000 = Loan payments * PVFA (r/12,t*12) r= 6% annual interest rate compounded monthly! t = 3 years So …… r /12= 0.06/12= 0.005 [1 point] t *12mt= 3*12 = 36
The monthly payments on the loan (PLAN 2) 22,000 = Loan payments * PVFA Let’s do the PVFA first PVFA(r/12, t*12) = [ (1- (1+r/12)^(-t*12) ] / r = (1- 0.835645) / (.005) = 0.164355 / 0.005 = 32.87102
The monthly payments on the loan (PLAN 2) 22,000 = Loan payment * PVFA $22,000 = Loan payment * 32.87102 $22,000 / 32.87102 = Loan payment Loan payment = $669.28 [2 points]
Monthly loan payments for plan 2 ON EXCEL Monthly loan payments for plan 2 = PMT (rate, nper, pv) = PMT (.005, 36, 22000) =$669.28