simple interest quiz

Sure, I can help you with a simple interest quiz. Please provide me with the questions, and I will explain how to get the answers.

Question 1: The principal amount is $1,000, the interest rate is 5%, and the time period is 2 years. Calculate the simple interest.

To calculate simple interest, you can use the formula:
Simple Interest = (Principal) x (Interest Rate) x (Time)

So, for this example, the calculation would be:
Simple Interest = $1,000 x 0.05 x 2 = $100

Therefore, the simple interest is $100.

Question 2: The principal amount is $500, the simple interest is $25, and the time period is 3 years. Calculate the interest rate.

To find the interest rate, you can rearrange the formula as:
Interest Rate = (Simple Interest) / (Principal) / (Time)

For this example, the calculation would be:
Interest Rate = $25 / $500 / 3 ≈ 0.0167

So, the interest rate is approximately 0.0167 or 1.67%.

Question 3: The interest rate is 8%, the simple interest is $320, and the time period is unknown. Calculate the time period.

To find the time period, you can rearrange the formula as:
Time = (Simple Interest) / (Principal) / (Interest Rate)

For this example, the calculation would be:
Time = $320 / Principal / 0.08

Since the principal amount is not given in the question, let's assume it is $4,000. Then the calculation would be:
Time = $320 / $4,000 / 0.08 = 1 year

So, the time period is 1 year.

I hope this helps you with the simple interest quiz. If you have any more questions or need further explanation, feel free to ask.