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

[EX Q]: Problem: if each side of a square is increased by 325 % in length , find the percentage change in its area ?
[EX A]: 956.25 %

[EX Q]: Problem: how many liters of a 40 % iodine solution need to be mixed with 35 liters of a 20 % iodine solution to create a 32 % iodine solution ?
[EX A]: 102

[EX Q]: 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 ?
[EX A]:
2 / 5