Rose makes a saving of 10,000 dollars at ANZ bank at 6.5% annually on simple interest. What is the total interest after 10 years?

A. [tex]$650
B. $[/tex]6,500
C. [tex]$65,000
D. $[/tex]650,000



Answer :

To calculate the total interest earned from Rose's savings at the bank, we will use the formula for simple interest. Here is a step-by-step explanation:

1. Identify the principal amount (P), which is the initial amount of money saved. In this case, the principal is \[tex]$10,000. 2. Determine the annual interest rate (R). The interest rate given is 6.5%. To use it in the formula, we need to convert it to a decimal by dividing by 100. Therefore, the rate is 6.5 / 100 = 0.065. 3. Identify the time period (T) for which the money is invested. Here, the time is 10 years. 4. Use the formula for calculating simple interest: \[ \text{Interest} (I) = P \times R \times T \] Substituting the values into the formula: \[ I = 10,000 \times 0.065 \times 10 \] Simplifying the multiplication: \[ I = 10,000 \times 0.065 = 650 \] \[ I = 650 \times 10 = 6,500 \] Thus, the total interest earned after 10 years is \$[/tex]6,500.

So, the correct answer is:
B. $6,500