Answer:
NPV =$(36,602.61)
Explanation: 
<em>The Net present value (NPV) is the difference between the Present value (PV) of cash inflows and the PV of cash outflows. A positive NPV implies a good and profitable investment project and a negative figure implies the opposite.  </em>
NPV = PV of cash inflows - PV of cash outflows  
<em>PV of cash inflow= A × (1- (1+r)^(-n)/r</em>
A- net cash inflow  1,950, r- discount rate- 15%, n- number of years- 3
PV of cash inflows =  1,950 × ((1- (1.15)^(-3))/0.15
                                = 4,452.28
<em>PV of scrap value = F ×(1+r)^(-n)</em>
F- Scrap value - 6000, r- discount rate = 15% n- number of years- 3
PV of scrap value = 6,000 ×(1.15)^(-3)=3,945.09
NPV = 4,452.28  + 3,945.097 - 45,000 
        =
(36,602.61)
NPV =$(36,602.61)