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

[EX Q]: Problem: positive integer y is 50 percent of 25 percent of positive integer x , and y percent of x equals 100 . what is the value of y ?
[EX A]: 125

[EX Q]: Problem: if | 5 x - 20 | = 100 , then find the sum of the values of x ?
[EX A]: 8

[EX Q]: Problem: a pupil ' s marks were wrongly entered as 83 instead of 63 . due to that the average marks for the class got increased by half . the number of pupils in the class is :
[EX A]:
40