The task is to generate the correct answer for a given math problem.

Ex Input:
Problem: what is the diagonal of a square field whose perimeter is 64 m ?

Ex Output:
16 2 m

Ex Input:
Problem: two pipes can fill the cistern in 10 hr and 12 hr respectively , while the third empty it in 30 hr . if all pipes are opened simultaneously , then the cistern will be filled in

Ex Output:
6.67 hr

Ex Input:
Problem: for what value of x , is | x 2 | + | x + 5 | + | x | = 17 ?

Ex Output:
5