#include <iostream>
using namespace std;
int main()
{
	int t;
	cin>>t;
	for(int k=1;k<=t;++k)
	{
		int n,c,m;
		cin>>n>>c>>m;
		int ans=0;
		ans=n/c;
		int w=ans;
		while(w>=m)
		{
			int temp=w/m;
			ans+=temp;
			w=w%m+temp;
		}
		cout<<ans<<endl;
	}
}