Answer to Question #135117 in Financial Math for jaya

Question #135117
The present value of a series of payments of $500 at the beginning of every month years, forever, is equal to $10000. Calculate the nominal annual discount rate compounded monthly.
1
Expert's answer
2020-09-28T20:11:37-0400

solution


payment, p=500payment, \ p = 500 is paid monthly in perpetuitymonthly\ in \ perpetuity and present value, pv=10000present\ value ,\ pv =10000


These represents a series of payments beginning at time 0, i.e annuity in advance


present value=p1+iipresent\ value =p*\frac{1+i}{i}


Where ii is the monthly compounding rate


10000=5001+ii10000 =500*\frac{1+i}{i}20=1+ii20=\frac{1+i}{i}i=119=5.2632%i=\frac{1}{19}=5.2632\%

Answer

The nominal annual discount rate:


(5.2632%)12=63.1579%(5.2632\% )*12=63.1579\%


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