If the net present value of a project is positive (non-zero), then the project's:.a) PI will be less than 1. b) internal rate of return will exceed its required rate of return. c) costs exceed its benefits. d) discounted payback period will exceed the life of the project. e) payback period must equal the life of the project.

b) internal rate of return will exceed its required rate of return.

Explanation:

The internal rate of return is the discount rate at which the NPV = 0. If the NPV is positive when calculated using the project's discount rate, then the IRR is going to be higher than the discount rate.

Option A is wrong because the profitability index (PI) of a project is calculated by dividing the present value of its cash flows by its cost. If the NPV is positive, it means that the present value of its cash flows will be greater than the costs, so the pI will be more than 1.

Option C is wrong because if the costs exceed the benefits, then the NPV will be negative.

Option D is wrong because that would mean that the NPV is negative.  

Option E is something made up that doesn't make any sense.

i'm pretty sure the answer is 60.