Last Semester a Class Gave a Professor $810 to Fly

question 46

Multiple Choice

Last semester a class gave a professor $810 to fly to Borneo. However, he decided not to go until he had enough money to fly back, an additional $690. If he invests the $810 at 8%, when can he make the trip, assuming no change in ticket prices?

• A) 8 years
• B) 6 years
• C) 4 years
• D) 2 years