Answer:
project A should be rejected and project B should be accepted
Explanation:
Discounted payback calculates the amount of time it takes to recover the amount invested in a project from it cumulative discounted cash flows
For project A
Discounted cash flows
Year 1 = 20000 / 1.13 = 17,699.12
Year 2 = 15,000 / 1.13^2 = 11,747.20
year 3 = 10,000 / 1.13^3 = 6930.50
Year 4 = 5000 / 1.13^4 = 3066.59
Discounted payback = 2.8 years