Independent solution

How to solve this Rate Conversion in an Annuity question

Setup

Setup

If j is the conversion-period rate and there are m periods per year, the annual effective accumulation is supplied directly.

(1+j)m=1.0614(1+j)^m=1.0614
i=0.0614i=0.0614

Model

Model

The annual payments are valued with the annual effective rate.

5.5554=an0.06145.5554=a_{\overline n|0.0614}

Compute

Compute

Solving the annuity equation gives a term essentially equal to seven years.

n=ln(10.0614(5.5554))ln(1.0614)7n=-\frac{\ln(1-0.0614(5.5554))}{\ln(1.0614)}\approx7

Answer

Answer

The annuity has seven payments, choice A.

n=7(A)\boxed{n=7\quad\text{(A)}}