Problem 9 - Dollar-weighted and Time-weighted rate of returns For an investment account, you are given the following information during the first 6 months of the year.

Date	Fund Value Before Activity	Deposit
January 1	60
March 15	85	20
June 1	75	25
June 30	109

a) Use the time-weighted method to calculate the yield rate earned by this investment during the first 6 months. j= % b) Use your answer to part a) to compute the equivalent annual effective interest rate earned by this investment. i= %