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

Example Input: Problem: x varies inversely as square of y . given that y = 3 for x = 1 . the value of x for y = 9 will be equal to :
Example Output: 1 / 9

Example Input: Problem: the radius of the wheel of a bus is 100 cms and the speed of the bus is 66 km / h , then the r . p . m . ( revolutions per minutes ) of the wheel is
Example Output: 175

Example Input: Problem: when positive integer x is divided by 11 , the quotient is y and the remainder is 4 . when 2 x is divided by 5 , the quotient is 3 y and the remainder is 4 . what is the value of 4 y x ?
Example Output:
0