diff --git a/your-code/main.ipynb b/your-code/main.ipynb
index b8b7a9c..bc2e385 100644
--- a/your-code/main.ipynb
+++ b/your-code/main.ipynb
@@ -24,7 +24,23 @@
    "outputs": [],
    "source": [
     "\"\"\"\n",
-    "your solution here\n",
+    "P(A U B) = P(A) + P(B) - P(A and B)\n",
+    "P(A U B) = 0.30 + 0.60 - 0.10\n",
+    "P(A U B) = 0.80\n",
+    "\n",
+    "P(A and not B) = P(A) - P(A and B) = 0.3 - 0.1 = 0.2\n",
+    "\n",
+    "P(A and (B U not B)) = P(A) = 0.3\n",
+    "\n",
+    "P(not A and not B) = 1 - P(A U B) = 1 - 0.8 = 0.2\n",
+    "\n",
+    "P(not (A and B)) = 1 - P(A and B) = 1 - 0.1 = 0.9\n",
+    " \n",
+    "1 - False\n",
+    "2 - True\n",
+    "3 - False\n",
+    "4 - False\n",
+    "5 - True\n",
     "\"\"\""
    ]
   },
@@ -49,7 +65,10 @@
    "outputs": [],
    "source": [
     "\"\"\"\n",
-    "your solution here\n",
+    "1 -> 10/30 = 1/3\n",
+    "2 -> 10/29\n",
+    "3 -> 11/28\n",
+    "4 -> 12/30 = 4/10\n",
     "\"\"\""
    ]
   },
@@ -68,17 +87,6 @@
     "What is the probability of rain, given the day started cloudy?"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "\"\"\"\n",
-    "your solution here\n",
-    "\"\"\""
-   ]
-  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -116,7 +124,18 @@
    "outputs": [],
    "source": [
     "\"\"\"\n",
-    "your solution here\n",
+    "P(dizer sim AND Ser homem) = P(dizer que sim) X P(Ser homem) -> Se forem independentes \n",
+    "\n",
+    "P(dizer que sim) = 67.5%\n",
+    "\n",
+    "P(ser homem) = 48%\n",
+    "\n",
+    "P(dizer sim AND Ser homem) = 32.4%\n",
+    "\n",
+    "Homens que disseram que sim = 324 -> Propabilidade = 324/1000 = 32.4%\n",
+    "\n",
+    "These events are independent. \n",
+    "\n",
     "\"\"\""
    ]
   }