10. Ramon starts the month with a balance on his credit card of $1,800. On the 10th day of the month, he purchases $1,230 in clothes with his credit card. On the 15th day of the month he makes a payment on his credit card of $510. The average daily balance for the month including the new purchase is $883. The average daily balance for the month excluding the new purchase is $750. The bank charges 51.35 percent per year and uses the previous balance/adjusted balance/average daily balance including new purchases/average daily balance excluding new purchases method.

a. What would Ramon's finance charges be for the month using each one of the 4 finance charges methods?

b. How much time would it take for Ramon to liquidate his credit card debt if he just pays the minimum every month (10%)?

c. How much would he end up paying if he did it this way?