Answer:
            PROJECT A
Year Cashflow DF@11.7 Â Â PV
      $
0 Â Â Â Â (80,000) Â Â Â Â Â Â 1 Â (80,000)
1-3 Â Â Â Â 34,000 Â 2.4145 82,093
      NPV  2,093
            PROJECT B
Year Cashflow DF@11.7 Â Â Â Â PV
       $           $
0 Â Â Â Â (80,000) Â Â Â Â Â Â 1 Â (80,000)
1-3 Â Â Â Â 114,000 Â Â Â 2.4145 Â Â Â 275,253
     NPV     195,253
Project B should be accepted because it has the higher NPV
Explanation:
The two projects would be discounted using annuity interest factor since the cashflows are constant. The annuity interest factor at 11.7% discount rate is 2.4145. Project B has the higher NPV and should be undertaken since the two projects are mutually exclusive. Mutually exclusive projects are projects in which the acceptance of one leads to the rejection of the other.