Display text based on dropdown choice

Display text based on dropdown choice

Hi there, I have a form called "Attempt" that has a drop down menu that is a task number that is a lookup from a "task view" I have. Based on the number selected I'd like to display another field from the "task view" for that record along side the number. I'd be happy for this to be uneditable text as it's only for display purposes, I don't even need it to write to the view for the form in question. Any ideas? 

Hope I'm explaining this ok. Another way to look at this... Imagine a set of questions in a view... based on the user selecting a question number in a form I'd like to display the actual question text on that form. They would then enter their answer in a multiline field and submit. No need to write the question text to the view as long as the question number is written. They just need to be able to see the question text in order to answer the question.