diff --git a/lab-oop_in_python.ipynb b/lab-oop_in_python.ipynb
index 3142c5e..ea9bc42 100644
--- a/lab-oop_in_python.ipynb
+++ b/lab-oop_in_python.ipynb
@@ -30,20 +30,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 30,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "250 125000\n"
+     ]
+    }
+   ],
    "source": [
     "# Your code here\n",
     "class Vehicle:\n",
     "    # Hint: Define __init__ method with parameters for max_speed and mileage\n",
-    "    pass\n",
+    "    def __init__(self, max_speed, mileage):\n",
+    "        self.max_speed = max_speed\n",
+    "        self.mileage = mileage\n",
     "\n",
     "# Example instantiation\n",
-    "modelX = Vehicle()  # Create an instance of Vehicle\n",
+    "modelX = Vehicle(250, 125000)  # Create an instance of Vehicle\n",
     "\n",
     "# Print attributes\n",
-    "print(modelX.max_speed, modelX.mileage)  # Expected output: (value of max_speed, value of mileage)"
+    "print(modelX.max_speed, modelX.mileage)\n",
+    " # Expected output: (value of max_speed, value of mileage)"
    ]
   },
   {
@@ -56,7 +67,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 28,
    "metadata": {},
    "outputs": [
     {
@@ -87,25 +98,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 64,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "<class '__main__.Bus'>\n"
+      "<class '__main__.Bus'>\n",
+      "Bus Type: School Volvo, Max Speed: 180, Mileage: 12\n"
      ]
     }
    ],
    "source": [
     "# Your code here\n",
     "class Bus(Vehicle):\n",
-    "    pass\n",
-    "\n",
+    "    def __init__(self, vehicule_type, max_speed, mileage):\n",
+    "        super().__init__(max_speed, mileage)\n",
+    "        self.vehicle_type = vehicule_type\n",
+    "    def __str__(self):\n",
+    "            return f\"Bus Type: {self.vehicle_type}, Max Speed: {self.max_speed}, Mileage: {self.mileage}\" \n",
+    "   \n",
     "# Example instantiation\n",
-    "school_bus = Bus()\n",
-    "print(type(school_bus))  # Expected output: <class '__main__.Bus'>"
+    "school_bus = Bus(\"School Volvo\", 180, 12)\n",
+    "print(type(school_bus))  # Expected output: <class '__main__.Bus'>\n",
+    "print(school_bus)"
    ]
   },
   {
@@ -118,14 +135,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 74,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "Base fare\n"
+      "Base farewith extra charge\n"
      ]
     }
    ],
@@ -137,7 +154,9 @@
     "\n",
     "class Bus(Vehicle):\n",
     "    # Hint: Override fare method to include extra charges\n",
-    "    pass\n",
+    "    def fare(self):\n",
+    "        base_fare = super().fare()\n",
+    "        return super().fare() + \"with extra charge\"\n",
     "\n",
     "school_bus = Bus()\n",
     "print(school_bus.fare())  # Expected output: \"Base fare with extra charge\""
@@ -153,7 +172,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 75,
    "metadata": {},
    "outputs": [
     {
@@ -188,7 +207,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 76,
    "metadata": {},
    "outputs": [
     {
@@ -228,7 +247,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 77,
    "metadata": {},
    "outputs": [
     {
@@ -255,7 +274,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 78,
    "metadata": {},
    "outputs": [
     {
@@ -287,7 +306,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": ".venv",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -301,7 +320,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.0"
+   "version": "3.11.5"
   }
  },
  "nbformat": 4,