TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: the ratio of a to b is 4 to 5 , where a and b are positive . if x equals a increased by 25 percent of a , and m equals b decreased by 60 percent of b , what is the value of m / x ?

SOLUTION: 2 / 5

PROBLEM: Problem: the average of 10 numbers is 0 . in those 10 , at the least , how many may be greater than or equal to zero ?

SOLUTION: 1

PROBLEM: Problem: if the perimeter of a rectangular garden is 1800 m , its length when its breadth is 400 m is ?

SOLUTION:
500