Jeh and Carlos put 200,000KES (Kenyan Shilling) and 300,000KES into savings accounts at different banks.
After 6 years, Jeh and Carlos have the same amount of money in their accounts.
They both receive interest compounded quarterly and Jeh has an annual interest rate three times greater than Carlos.
Work out the annual interest rate that Jeh receives.
Give your answer correct to 1 decimal place.
