GPA Scales?

<p>Part of the GPA scale at my high school is as follows:</p>

<p>90 -100 = 4.0
85 -88 = 3.7
80 - 85 = 3.5</p>

<p>... etc.</p>

<p>Is this good if the top 30% of the graduating class (about 1200 students) have 90+ averages? (i.e if 20% is 93+) </p>

<p>Since my GPA is 93, or 4.0, is this good for selective schools? Could anyone answer my question please?</p>

<p>Thanks in advance.</p>