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

Ex Input:
Problem: find the area of trapezium whose parallel sides are 20 cm and 18 cm long , and the distance between them is 10 cm ?

Ex Output:
190 cm 


Ex Input:
Problem: if | 5 x - 20 | = 100 , then find the sum of the values of x ?

Ex Output:
8


Ex Input:
Problem: express a speed of 63 kmph in meters per second ?

Ex Output:

17.5 mps