#include <iostream>
using namespace std;

int main() {
	double p, d, a, b, f, t, flyDist;
	int n;
	cin >> p;
	for (int i = 0; i < p; i++){
		cin >> n >> d >> a >> b >> f;
		t = d / (a + b);
		flyDist = f * t;
		cout.precision(2);
		cout << fixed << n << " " << flyDist << endl;
	}
	return 0;
}