import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int t = in.nextInt();
        for(int i = 0; i < t; i++){
            System.out.println(Solve(in.nextInt(), in.nextInt(), in.nextInt()));
        }
    }

    private static long Solve(int t, int p, int w){
        long wC=0,c=0;
        c=t/p;
        wC=c;
        while(wC>=w){
            c+=wC/w;
            wC+=wC/w;
            wC=wC-w;
        }
        return c;
    }


}