1. A 25-year mortgage of $124,188.57 at 8.5% interest compounded monthly has monthly payments of $1000. After how many months will at least 75% of the monthly payment go toward debt reduction?
2. A 30-year mortgage of $118,135.40 at 8.4% interest compounded monthly has monthly payments of $900. After how many months will the amount applied to the reduction of the debt be more than twice the amount applied to interest?