If x+y=250, x-y=200, for integers of x and y, y=? Choose the most appropriate option.
A) 200	B) 225	C) 50	D) 115	E) 150

Rationale: "x + y = 250 x - y = 200 2 x = 50 x = 25 y = 225 answer is b"
Answer: B