Which answer below is correct, explain why the answer is correct and why are the other 3 answers incorrect.

330 divided by 30 = 13
360 divided by 30 = 13
390 divided by 30 = 13
420 divided by 30 = 13

The correct answer is "330 divided by 30 = 13".

The other three answers (360 divided by 30 = 13, 390 divided by 30 = 13, and 420 divided by 30 = 13) are incorrect because they provide incorrect results for the division operation.

To find the correct answer, divide 330 by 30. This division results in 13. Therefore, 330 divided by 30 equals 13.