Created the 1st solution_3.cpp

units/2023_10_19/solution_3.cpp

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+#include <iostream>
+
+using namespace std;
+
+int main() {
+    // Variablendeklaration
+    double netto, taxes, brutto;
+    int tables, price;
+
+    cout << "Geben Sie die Anzahl der Tische ein: ";
+    cin >> tables;
+
+    cout << "Geben Sie den Einzelpreis ein: ";
+    cin >> price;
+
+    netto = tables * price;
+    taxes = netto * 0.19;
+
+    brutto = netto + taxes;
+
+    cout << "Nettobetrag: " << netto << " Euro" << endl;
+    cout << "Mehrwertsteuer: " << taxes << " Euro" << endl;
+
+    cout << "---------------------------------------------------" << endl;
+    cout << "Bruttobetrag: " << brutto << " Euro" << endl;
+}