Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Statement 1: Add x+y on both sides, then you have 2y < x+y, so question can be answered with this statement alone.
Now answer can be either A or D.
Statement 2: Tells us z-y > (z-x)/2, which means 2z-2y>z-x (Multiplying by 2 on both sides, as 2>0 so no need to reverse sign of inequality) 2z-2y>z-x => 2y<z+x, again question can be answered with this statement alone.