If the nominal annual interest rate is 12% compounded quarterly, what is the effective annual interest rate?

the effective annual interest rate is 12.55 %

Explanation:

The computation of the effective annual interest rate is shown below:

Effective annual interest rate is calculated by using the following formula

= {(1 + interest  ÷ number of compounding period)^number of compounding period} - 1

= (1 + .12 ÷ 4)^4-1

= (1.03)^4 - 1

r = 1.1255 - 1

r=.1255

hence, the effective annual interest rate is 12.55 %

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