Question 1149069
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            After the presented analytical solution/solutions,  the correct answer should be formulated in terms 
            of integer number of years OR integer number of compounding periods.



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In this context, the correct answer should go and should be read in this form:


    (1)  7 years is enough;  6 years is not enough.


    (2)  7*4 = 28 compounding quarter periods is enough;  27 compounding quarter periods are not enough.
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