Determining the payback period with uneven cash flows Alpine Snowmobile Company is considering whether to invest in a particular new snowmobile model.

The model is top-of-the-line equipment for which Alpine expects high demand during the first year it is available for rent. However, as the snowmobile ages, it will become less desirable and its rental revenues are expected to decline. The expected cash inflows and outflows follow.

Required

a. Determine the payback period using the accumulated cash flows approach.

b. Determine the payback period using the average cash flows approach.