considering investing in a project requiring a capital outlay of D$. 200,000. Forecast for annual income after depreciation but before tax is as follows..

Year	$
01	100,000
02	100,000
03	80,000
04	80,000
05	40,000

Depreciation may be taken 20% on original cost and taxation at 50% of net income. You are required to evaluate the project according to each of the following.

a. Pay back method

b. Rate of return on original investment method.

c. Rate of return on average investment method

d. Discounted cash flow method taking cost of capital as 10%

e. Net present value index method

f. Internal rate of return method.