Make sure give me right answer please.

Crane Unlimited is considering purchasing an additional delivery truck that will have a seven-year useful life. The new truck will cost $46,600. Cost sivings with this truck are expected to be $14,200 for the first two years $9.900 for the following two years, and $5,600 for the last three years of the truck's usefullife. What is the payback period for this project? (Round answer to 2 decimal places, e? 5275) Payback period years What is the discounted payback period for this project with a discount rate of 10 percent? (Round answer to 2 decimal ploces, es. 5275 .) Discounted payback period years