Your question is Breaking Even on Lending Economics. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you break even on a loan amount given a 5% interest rate?
Treat this as a loan-pricing fundamentals question. State what “break even” means, identify the missing inputs, and show the calculation using principal as P. Assume simple annual interest unless you state another convention. Explain how the answer changes if the loan has funding costs, fees, defaults, or a different term.