Forms :: Displaying Conditional Info On A Form

I am trying to create a form where I store the literacy and numeracy results of a group of students. So far I have designed a form which gives me a tick box as to whether the test they took was literacy or numeracy, then a box where I enter the score. Literacy tests are scored out of 72 and numeracy out of 50.

what I would like to do is write something that shows the literacy numeracy levels of each student after each test. So for literacy, the score ranges are as follows:

0 - 13 Below Entry 1
14 - 32 Entry 1
33 - 52 Entry 2
53 - 65 Entry 3
66 - 7 Level 1

What I would like to be able to do is tick whether or not they sat a literacy or numeracy test, enter the score and the db to come up with their level and display it on the form.