Calculating Simple Interest Concepts

This video tutorial by Mr. Holcomb covers the concept of simple interest, explaining the formula I = PRT, where I is interest, P is principal, R is rate, and T is time. Through examples and exercises, the video demonstrates how to calculate interest over different periods and rates, including annual, monthly, and semiannual rates. It also covers solving for unknown variables such as time and principal, providing a comprehensive understanding of simple interest calculations.

What is the formula for calculating simple interest?

• I = P + R + T

• I = P/R*T

• I = P*R/T

• I = PRT

If the interest rate is annual, how should the time be expressed?

• In days

• In weeks

• In years

• In months

How much interest does Larry earn after three years with a 4.5% interest rate on $100?

• $22.50

• $15.00

• $10.00

• $13.50

What is the balance of Larry's account after five years?

• $150.00

• $113.50

• $100.00

• $122.50

What is the interest earned on a $500 principal at 7.5% after ten years?

• $875.00

• $750.00

• $500.00

• $375.00

How can you calculate the total balance after interest is applied?

• Divide interest by principal

• Subtract interest from principal

• Multiply principal by interest

• Add principal and interest

How is the time converted when calculating interest for a period less than a year?

• Convert months to hours

• Convert months to weeks

• Convert months to days

• Convert months to years

What is the interest earned on a $1000 bond at 3% annual interest after three months?

• $7.50

• $10.00

• $20.00

• $15.00

How long will it take for $450 to earn $200 in interest at 6.5% annually?

• 6 years

• 5 years

• 8 years

• 7 years

What is the simple interest on a $600 investment at 2% semiannual rate after 1.5 years?

• $30.00

• $24.00

• $36.00

• $18.00