Hey guys help me out please,
what is the 3rd test?

Here is my code:
for (int i = 0; i < n; i++)
{
    if (CoverType[i] == 1 && WellType == 1 && WellSize <= CoverSize[i]) { Number++; } else
    if (CoverType[i] == 2 && WellType == 1 && WellSize <= CoverSize[i]*Math.Sqrt(3)/6) { Number++; } else
    if (CoverType[i] == 3 && WellType == 1 && WellSize <= CoverSize[i]/2) { Number++; } else
    if (CoverType[i] == 1 && WellType == 2 && WellSize <= CoverSize[i]*Math.Sqrt(3)) { Number++; } else
    if (CoverType[i] == 2 && WellType == 2 && WellSize <= CoverSize[i]) { Number++; } else
    if (CoverType[i] == 3 && WellType == 2 && WellSize / Math.Sqrt(3) <= CoverSize[i] /2) { Number++; } else
    if (CoverType[i] == 1 && WellType == 3 && WellSize <= CoverSize[i]*Math.Sqrt(2)) { Number++; } else
    if (CoverType[i] == 2 && WellType == 3 && WellSize * Math.Sqrt(6) <= CoverSize[i]) { Number++; }  else
    if (CoverType[i] == 3 && WellType == 3 && WellSize <= CoverSize[i]) { Number++; }
}
What is wrong with this code?
Should it be <= or < when comparing sizes?