Ranking. Data relating to three investment projects are given below. A                             B                             C Investment (I)...

Ranking. Data relating to three investment projects are given below.

A                             B                             C

Investment (I)                   $30,000                 $20,000 $50,000

Useful life                           10 years               4 years                  20 years

Annual cash savings        $6,207                   $7,725                   $9,341

Rank the projects according to their attractiveness using the: (a) payback period; (b) IRR; and (c) NPV at 14 percent cost of capital.