The electric-powered truck cost $23,000, whereas the gas-powered truck will cost $17,100. The cost of capital that applies to both investments is 11%. The life for both types of truck is estimated to be 6 years, during which time the net cash flows for the electric-powered truck will be $6,500 per year and those for the gas-powered truck will be $4,950 per year. Annual net cash flows include depreciation expenses.

the NPV for each type of truck.

the IRR for each type of truck.

Which type of the truck should the firm purchase?