Benjamin invested $99,000 in an account paying an interest rate of 7, one half7 2 1 ​ % compounded continuously. Zachary invested $99,000 in an account paying an interest rate of 7, start fraction, 7, divided by, 8, end fraction7 8 7 ​ % compounded quarterly. To the nearest hundredth of a year, how much longer would it take for Benjamin's money to triple than for Zachary's money to triple?