Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 2 - Section 2.2 - Compound Interest - Exercises - Page 143: 41

Answer

Our investment's value 2 years from now will be: $\frac{\$1,102.5}{1.0609}\approx\$1,039.212$

Work Step by Step

The future value of the investment can be calculated as: $FV=PV×(1+r)^t$ Here, the present value is the money invested: $PV=\$1,000$ The compound rate per year is $r=5\%$ The number of periods is $2$, as we invest it for $2$ years. Therefore the future value is: $FV=PV×(1+r)^t=1,000×1.1025≈\$1,102.5$ We have to consider the inflation too: The value of the investment can be calculated, as: $\frac{FV}{(1+i)^t}$ Here, $FV= \$1,102.5$ The inflation rate per year is $3\%$ $t=2$, as we have invested for 2 years. Therefore our investment's value 2 years from now will be: $\frac{\$1,102.5}{1.0609}\approx\$1,039.212$
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