Question 958628
{{{(90-X)/90=95/100}}}
{{{90-X=8550/100}}}
{{{90-X=171/2}}}
{{{X=180/2-171/2}}}
{{{X=9/2}}}
So Amber either got 4 or 5 wrong.
If she got 4 wrong,
{{{86/90=95.56}}} 
which would round up to 96.
If she got 5 wrong,
{{{85/90=94.44}}} 
which would round down to 94. 
So Amber couldn't have gotten a 95%.