A student who was ineligible for financial aid needed to borrow$775,000 for tuition, books, and living expenses. Some money was borrowed at 8%, some at 9%, and some at 10%. How much was borrowed at each interest rate if the annual interest owed was $67,500 and the amount borrowed at 8% was four times the amount borrowed at 10%? 8%: 9%: 10%: