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: a house wife saved $ 5 in buying an item on sale . if she spent $ 48 for the item , approximately how much percent she saved in the transaction ?
[EX A]: 10 %

[EX Q]: Problem: if n is an integer and 101 n ^ 2 is less than or equal to 6400 , what is the greatest possible value of n ?
[EX A]:
7