Answer:
$0.316 trillion per annum
Explanation
According to the scenario, computation of the given data are as follow:-
Interest rate = 0.5% = 0.005
Government Borrows = $6 trillion
Time = 20 years
Required Uniform Annual Payment= Government Borrows × Interest Rate × [(1 + Interest Rate)^Time period ÷ (1 + Interest Rate)Time period] - 1
= $6 trillion × 0.005 × [(1 + 0.005)^20 ÷ (1 + 0.005)^20 - 1]
= $0.03 trillion × [(1.005)^20 ÷ (1.005)^20 - 1]
= $0.03 trillion × (1.1049 ÷ 1.1049 - 1)
= $0.03 trillion × (1.1049 ÷ 0.1049)
= $0.03 trillion × 10.533
= $0.316 trillion per annum