Problem 1 1. The following table shows the annual effective interest rates being credited by an investment account, by calendar year of investment. The investment year method is applicable for the first 3 years, after which a portfolio rate is used: Investment Year Rates Calendar Calendar Year of Year of Portfolio Portfolio Investment 11 iz Rate Rate 2010 9% 10% t% 2013 6% 2011 11% 6% 9% 2014 t-1% 2012 8% t-2% 10% 2015 6.25% 2013 7% 10% 7% 2016 7% 2014 9% 7% 8% 2017 8% An investment of 100 is made at the beginning of years 2010, 2011 and 2012. The total amount of interest credited by the fund in year 2013 is equal to 83.46. Calculate t. Problem 1 1. The following table shows the annual effective interest rates being credited by an investment account, by calendar year of investment. The investment year method is applicable for the first 3 years, after which a portfolio rate is used: Investment Year Rates Calendar Calendar Year of Year of Portfolio Portfolio Investment 11 iz Rate Rate 2010 9% 10% t% 2013 6% 2011 11% 6% 9% 2014 t-1% 2012 8% t-2% 10% 2015 6.25% 2013 7% 10% 7% 2016 7% 2014 9% 7% 8% 2017 8% An investment of 100 is made at the beginning of years 2010, 2011 and 2012. The total amount of interest credited by the fund in year 2013 is equal to 83.46. Calculate t