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

Ex Input:
Problem: | x + 3 | | 4 - x | = | 9 + x | how many solutions will this equation have ?

Ex Output:
1

Ex Input:
Problem: a train 360 m long runs with a speed of 45 km / hr . what time will it take to pass a platform of 150 m long ?

Ex Output:
40.8 sec

Ex Input:
Problem: in a college the ratio of the numbers of boys to the girls is 8 : 5 . if there are 210 girls , the total number of students in the college is ?

Ex Output:
54