Simple Interest and Account Balances

The video tutorial explains how to calculate simple interest and determine the final account balance after a specified period. It introduces the simple interest formula I = P x R x T, where I is the interest earned, P is the principal amount, R is the interest rate as a decimal, and T is the time in years. Using an example of a $5,000 deposit at a 4% interest rate over six years, the tutorial calculates the interest earned as $1,200 and the final account balance as $6,200.

What is the initial deposit amount mentioned in the problem?

• $4,000

• $7,000

• $5,000

• $6,000

What is the interest rate applied to the deposit in the problem?

• 5%

• 6%

• 4%

• 3%

Which formula is used to calculate simple interest?

• I = P + R + T

• I = P / R x T

• I = P x R / T

• I = P x R x T

In the formula I = P x R x T, what does 'P' stand for?

• Percentage

• Principal

• Profit

• Period

How much interest is earned over the six-year period?

• $1,800

• $1,500

• $1,200

• $1,000

What is the final account balance after six years?

• $6,000

• $7,000

• $5,200

• $6,200