Ventura Manufacturing is considering an investment in a new automated manufacturing system. The new system requires an investment of $3,000,000 and either has:

a. Even cash flows of $750,000 per year or

b. The following expected annual cash flows: $375,000, $375,000, $1,000,000, $1,000,000, and $250,000

Calculate the paycheck period for each case

a. ? years

b. ? years