Can't read your attachment....
Can you post the question yourself?
2. What does sub compounding mean?
In this context, they mean "the period over which each of the compoundings is done". For instance, were interest compounded daily, the sub-compounding period would be "one day", with n = 365.Question: How many compounding periods are needed to have an effective interest rate of 25% if the interest rate per subcompounding period is 1.88%?
2. What does sub compounding mean?