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

Ex Input:
Problem: 5 / 8 of 3 / 10 of a number is greater than 4 / 9 of 1 / 4 of the same number by 55 . what is half of that number ?

Ex Output:
36

Ex Input:
Problem: a diagonal of a polygon is an segment between two non - adjacent vertices of the polygon . how many diagonals does a regular 20 - sided polygon have ?

Ex Output:
170', 'c ) 1425', 'd ) 2025', 'e ) 2500'

Ex Input:
Problem: a cube is painted red on all faces . it is then cut into 27 equal smaller cubes . how many h cubes are painted on only 2 faces ?

Ex Output:
12