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Practice Exercise 15.6 - Calculate the Simple Interest

1. A customer borrowed $5,000 at 5% per annum for 2 years. Calculate the simple interest and the amount to be paid.


Sagot :

Alright, let's solve this problem step-by-step.

### Finding the Simple Interest

1. Determine the principal amount (P):
The principal amount (the initial amount of money borrowed) is [tex]$5000. 2. Determine the annual interest rate (r): The annual interest rate is given as 5%, which as a decimal is 0.05. 3. Determine the time period (t): The time period for which the money is borrowed is 2 years. 4. Use the simple interest formula: Simple interest (SI) is calculated using the formula: \[ \text{SI} = P \times r \times t \] Plugging in the values: \[ \text{SI} = 5000 \times 0.05 \times 2 \] 5. Calculate the simple interest: \[ \text{SI} = 5000 \times 0.05 \times 2 = 500.0 \] So, the simple interest for borrowing $[/tex]5000 at 5% per annum for 2 years is [tex]$500.0. ### Finding the Total Amount to be Paid 1. Calculate the total amount: The total amount to be paid (A) at the end of the borrowing period includes the principal amount and the interest accrued. The formula to calculate the total amount is: \[ \text{A} = P + \text{SI} \] 2. Plug in the values: \[ \text{A} = 5000 + 500.0 \] 3. Calculate the total amount: \[ \text{A} = 5500.0 \] So, the total amount to be paid after 2 years is $[/tex]5500.0.

### Summary

- Simple Interest (SI): [tex]$500.0 - Total Amount (A) to be paid after 2 years: $[/tex]5500.0

Therefore, the simple interest for borrowing [tex]$5000 at 5% per annum for 2 years is $[/tex]500.0, and the total amount that needs to be paid after 2 years is $5500.0.
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