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

[EX Q]: 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 :
[EX A]: 1 / 9

[EX Q]: Problem: if a a b = 2 a - 3 b + ab , then 3 a 2 + 2 a 3 is equal to :
[EX A]: 7

[EX Q]: Problem: a plant manager must assign 12 new workers to one of five shifts . she needs a first , second , and third shift , and two alternate shifts . each of the shifts will receive 3 new workers . how many different ways can she assign the new workers ?
[EX A]:
2640