Question: Solution Based on Previous Response in Maple TA

I would like to ask a 2-part question in Maple TA in which the correct response to the second part of the question is based on the student's response to the first part of the question.

Here is a simple example.

Question #1

A) What is 1+4 ?

B) What is 2 times your solution to part A?

Obviously, the correct answer to B is 10, but what if the student thought that the correct answer to A was 4? Then if they put 8 as the answer to B I would like to give either full or partial credit. Obviously, I would be using more complex examples than this, but if there is a way to make the solution to part B dependant on the student response to part A that would be most helpuful. I would like to say something like the correct answer to part A is 5 and the correct answer to part B is equal to 2 times the student response to part a, instead of just saying the correct answer to part B is 10. 

Thanks.