Answer: 11.87%
Step-by-step explanation:
Effective interest rate on this loan is:
= Interest payment / (Note - Interest payment) * 12/8 months
Interest payment:
= Note * Interest rate * 8/12 months
= 100,000 * 11% * 8/12
= $7,333
Effective interest:
= 7,333 / (100,000 - 7,333) * 12/8
= 11.87%