uppose, Bangla Link Telecom Company plans to issue a bond with 15 years of maturity to arrange a new fund for installing a 5G network across the country. The return of this bond will be adjusted with IP, MRP, DRP, and Rf. The adjustment will be as follows: IP of 1st year is 3.5%, 2nd year 4.5%, and 3 years and beyond is 6.5%.; rate of return of 0.1% to calculate MRP; LP 1%; DRP 1.5%; and the risk-free rate is 3.5%. What will be the rate of Bangla Link bonds after 15 years?