Final answer:
To find the interest rate, we can use the formula for simple interest: Interest = Principal × Rate × Time. In this case, the principal is $2000 and the interest is $320. The interest rate is 8%.
Step-by-step explanation:
To find the interest rate, we can use the formula for simple interest: Interest = Principal × Rate × Time. In this case, the principal is $2000 and the interest is $320. We can plug these values into the formula and solve for the rate:
$320 = $2000 × Rate × 2
Dividing both sides of the equation by $4000 (2000 × 2), we get:
Rate = $320 ÷ $4000 = 0.08 = 8%