Terminology in GMAT

I have read about GMAT, so I got some terminologies in GMAT. I will present it as following:

1. Whole number: non-negative integer
2. The mean: average of set
3. The most: the most common element in a set
4. Right Triangles: in which one of the angles has a measure equal to 90.

Start new season to gain expected outcome!:)

New season is coming for me. So, I will try to work by my best to gain most expected outcome which I proposed.