Answer:
2.68 years
Step-by-step explanation:
Year Inflows Discount rate 10% PV of cash inflows Cumulative value
1 $6,000 0.9090909091 $5,454.55 $5,454.55
2 $12000 0.826446281 $9,917.36 $15,371.90
3 $9,000 0.7513148009 $6,761.83 $22,133.73
4 $14,000 0.6830134554 $9,562.19 $31,695.92
Total present value $31,695.92
Now the discounted payback period is
= 2 + ($20,000 - $15,371.90) ÷ ($6761.83)
= 2 + 0.68 years
= 2.68 years