Arnold loans you $1600 and asks you to pay them back $1700 after 6 months.  What was the annual percentage rate (APR) that they charged you?  Give your answer as a decimal rounded to three decimal places (for example, 4.25% would be entered as 0.043 after rounding).

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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Arnold loans you $1600 and asks you to pay them back $1700 after 6 months.  What was the annual percentage rate (APR) that they charged you?  Give your answer as a decimal rounded to three decimal places (for example, 4.25% would be entered as 0.043 after rounding).

Expert Solution
Step 1

The amount that Arnold loaned to you is $1600.

The amount you should pay back is $1700.

The time period is 6 months.

Hence, we have

Principal P=$1600

Total amount to be repaid A=$1700

Note that, 6 months represents a half year.

Time period in years t=12 years

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