Surveying the learner on one 1 slide to use their answers on the next.

Another day another newbie question by me...sorry.

I want to create one slide where I ask the learner questions.

It´s a mix of number entry boxes and selection choice by radio button.

The result (gathered through variables) are to be used on the next slide.

e.g.

- Type 1: "How many ___ did you __?" (user enters number to be used a variable)

Question: Can I limit the entered number somehow?
For example, any number higher than ___ shows  message "are you sure? This seems very high" or such.

- Type 2: "Do you rather choose ____ or ____?"

Question:

I thought I would use radio buttons to compile the answers.

So let´s say I have 2 answers to choose from.

If I understand correctly the selection of one radio button will change a variable I can set.

But how do I get the answer that was choosen to be displayed on the next slide?

E.g. Radio button answer 1: "It´s X." shows up like that on the next slide

In other words, how does the button selection determine the var?

Pressing button #1 -> var value ="1"?

Or pressing button #1 -> var value = "wording as in the question"?

I guess the answers are really simple but thanks for any short hint...