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

[EX Q]: Problem: how much interest will $ 8,000 earn in 9 months at an annual rate of 6 % ?
[EX A]: $ 360

[EX Q]: Problem: the average of temperatures at noontime from monday to friday is 55 ; the lowest one is 45 , what is the possible maximum range of the temperatures ?
[EX A]: 40

[EX Q]: Problem: if x + y = 260 , x - y = 200 , for integers of x and y , y = ?
[EX A]:
230