Question #233749
Jack deposited $500,000 into a bank for 6 months. At the end of that time, he withdrew the money and received $520,000. If the bank paid interest based on continuous compounding:
a. What was the effective annual interest rate?
b. What was the nominal annual interest rate?
1
Expert's answer
2021-09-16T02:08:29-0400

18%18\% compounded monthly


(a)


– interest rate per month: i =18%/12=1.5%18\%/12 = 1.5\%

– no. interest periods per year:N=12N = 12


Suppose that you invest $500,000 for 6 months at 18% compounded monthly.


F=$500,000(1+i)N=$500,000(1+0.015)12F= \$500,000 (1 + i)^N = \$500,000(1 + 0.015)^{12}

=$1,195.60= \$1,195.60

i=0.1956——>19.56%i = 0.1956——>19.56\%


(b)

Nominal Rate per Period:

r = 59.437024%


Rate per Compounding Intereval:

p = 92.5728374%


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