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

Input: Consider Input: Problem: what is the range of all the roots of | x ^ 2 - 4 | = x ?

Output: 3

Input: Consider Input: Problem: a jogger running at 9 kmph along side a railway track is 260 metres ahead of the engine of a 120 metre long train running at 45 kmph in the same direction . in how much time will the train pass the jogger ?

Output: 38 sec

Input: Consider Input: Problem: a number x is mistakenly divided by 10 instead of being multiplied by 10 . what is the percentage error in the result ?
Output: - 99 %