(11) An investment project provides cash inflows of $765 per year for eight years. What is the project payback period if the initial cost is $2,400? What if the initial cost is $3,600? What if it is $6,500?

(12) An investment project has annual cash inflows of $4,200, $5,300, $6,100, and $7,400, and a discount rate of 14%. What is the discounted payback period for these cash flows if the initial cost is $7,000? What if the initial cost is $10,000? What if it is $13,000?

(13) A project that provides annual cash flows of $28,500 for nine years costs $138,000 today. Is this a good project if the required return is 8%? What if its 20%? At what discount rate would you be indifferent between accepting the project and rejecting it?

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