Problem 6 (a) Use trial and error-procedure based on PW equation determine the rate of return (ROR) for the shown cash flow diagram (6 marks): Hint: . . . 1250,000 Set PW-inflow-PW-outflow Use the interest Tables in the formula sheet Show the linear interpolation 120,000 1350,000 (b) For the Table below Complete the third column (Cum NCF, $). Specify how many possible rate of returns. NCF, $ Cum NCF, $ Year 0 5,000 -10.100 123456 500 2,000 2,000 2,000 2,000