4. Brock borrows $2,000 from his father and repays
the money after 2 years, plus 5% simple interest.
How much interest does Brock pay on the loan?

Why is the answer to this $200 and not $2000 I did the formula and everything I need help! The answer booklet says $2000 is wrong. Tell me what I did wrong!?

Question

4. Brock borrows $2,000 from his father and repays 
the money after 2 years, plus 5% simple interest.  
How much interest does Brock pay on the loan? 

Why is the answer to this $200 and not $2000 I did the formula and everything I need help! The answer  booklet says $2000 is wrong. Tell me what I did wrong!?

jdoe0001 · Answer

Interest Amount  = Principal(original amount) * rate(in decimals) * time(years)

jdoe0001 · Answer

$\bf i = prt\implies i = 2000\times 0.05\textit{(5% in decimal format)}\times 2\textit{(years)}$