Part of $9,000 Is Invested at 11%, Another Part at 13

question 26

Multiple Choice

Part of $9,000 is invested at 11%, another part at 13%, and the remainder at 15% yearly interest. The total yearly income from the three investments is $1,210. The sum of the amounts invested at 11% and 13% equals the amount invested at 15%. Determine how much is invested at each rate, if 2,500 is invested at first rate.

• A)$2,500 at 11%, $2,000 at 13%, and $4,500 at 15%
• B)$3,000 at 11%, $1,000 at 13%, and $4,000 at 15%
• C)$3,500 at 11%, $1,000 at 13%, and $4,500 at 15%
• D)$3,000 at 11%, $2,000 at 13%, and $4,000 at 15%
• E)$2,000 at 11%, $3,000 at 13%, and $3,500 at 15%

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Definitions:

Standard Error

A statistical measure that describes the distribution of sampling means around the population mean, indicating the precision of the sample mean estimate.

Sample Size

The number of observations or data points collected in a statistical study.

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