Is the simple interest on 2000 for 2 years is 320 then what is the interest rate?

To calculate the interest rate, we can use the formula for simple interest: I = P * r * t, where I is the interest, P is the principal amount (2000 in this case), r is the interest rate, and t is the time in years (2 years). Given that the interest is $320, we can plug in the values to solve for r: 320 = 2000 * r * 2. Solving for r, we get r = 320 / (2000 * 2) = 0.08, or 8%. Therefore, the interest rate is 8%.