SP Limited company is having two projects, requiring a capital outflow of $3,00,000 on each project.The expected annual income after depreciation but before tax is as follows:
| 
 Year 
 | 
 Project-A $ 
 | 
 Project-B$ 
 | 
| 
 1 
 | 
 9,000 
 | 
 80,000 
 | 
| 
 2 
 | 
 80,000 
 | 
 100,000 
 | 
| 
 3 
 | 
 70,000 
 | 
 30,000 
 | 
| 
 4 
 | 
 60,000 
 | 
 90,000 
 | 
| 
 5 
 | 
 50,000 
 | 
 40,000 
 | 
Depreciation may be taken as 20% of original cost and taxation at 50% of net income: You are required to calculate:
(a) Pay-back period
(b) Net present value
(c) Accounting rate of return
(d) Net present value index.
(e) Internal rate of return.