Azimo Company wants to in two Items of Machinery which are estimated to cost the firm Ksh 3,000,000 each below are the projections of returns over their useful life of 5 years and associated costs Machine A Period (yrs) Benefits Cost 1 2 Machine B 700000 20000 970000 55000 3 990000 45000 4 987000 66000 5 678000 27000 Period(yrs) Benefits Cost 1 650000 30000 2 980000 76000 3 920000 88000 4 675000 78500 5 725000 56500 Required: Evaluate the two Machines. i. Payback Period (If the set Pay Back period is 4 years)