> int main(){
>     int i,num;
>     int mark[1000];
>     scanf("%d",&num);
>     int n,m,j;
>     float k;
>     float avr;
>     i=num;
>     while(i>0){
>         scanf("%d",&mark[0]);
>         for(n=1;n<=mark[0];n++){scanf("%d",&mark[n]);}
>         avr=0;
>         for(m=1;m<=mark[0];m++){avr=avr+mark[m];}
>                 avr=avr/mark[0];
>         k=0;
>         for(j=1;j<=mark[0];j++){if((float)mark[j]>=avr)k++;}
>                 printf("%.3f%%\n",(k/mark[0])*100);
>         i--;
>     }
>     return 0;
> }