5. Clipper plc is considering five project proposals. They are summarised below: Project Initial Annual Annual fixed Life of project Investment revenue Costs (cash outflows) (years) (1000) (1000) (6000) 10 20 5 30 30 10 15 18 12 17 10 18 8 15 Variable costs (cash outflows) are 40 per cent of annual revenue. Projects D and E are mutually exclusive. Each project can only be undertaken once and each is divisible. Assume The cash flows are confined to within the lifetime of each project. The cost of capital is 10 per cent. No inflation. No tax. All cash flows occur on anniversary dates. If the firm has a limit of f40,000 for investment in projects at Time 0, what is the optimal allocation of this sum among these projects, and what is the maximum net present value obtainable