#include
     
      #include
      
       #include
       
        using namespace std;int main(){        int c;    cin>>c;    while(c--){        int n,v,w;        cin>>n>>v>>w;        vector
        
          vec;        for(int i=0;i
         
          >temp;            vec.push_back(temp);        }        sort(vec.begin(),vec.end());        double sum=0;        int cut=0;        for(auto it=vec.begin();it!=vec.end();++it){            sum+=(*it);cut++;            if(sum>w*cut){                sum-=(*it);cut--;break;            }        }        if(cut == 0){            cout<<"0 0.00\n";        }else printf("%d %0.2lf\n",cut*v,sum*0.01/cut);//注意要/100，第一次忘了    }    return 0;}