[SOA 166] An investor deposits 100 into a bank account at time 0. The bank credits interest at an annual nominal interest rate of i, compounded semi-annually. The total amount of interest credited in the twelfth year is twice the amount of interest credited in the fifth year. Calculate i.

[SOA 166] An investor deposits 100 into a bank account at time 0 . The bank credits interest at an annual nominal interest rate of i, compounded semi-annually. The total amount of interest credited in the twelfth year is twice the amount of interest credited in the fifth year. Calculate