a) Bunja bunja is considering an investment in new equipment. The company has a cost of capital of 12% per annum. the following are the cash flows YEAR CASH FLOWS K 0 (20,000) 1 7,000 2 6,000 3 5,000 4 4,000 5 3,000 REQUIRED: i) The Net Present Value (NPV). (6 marks) ii) The internal Rate of Return. (IRR). (7 marks) iii) The Payback Period (PBP). (5 marks) b) State TWO reasons material price variance. (2 marks) (