diff --git a/Chapter 4/Exercise 4.2 b/Chapter 4/Exercise 4.2
new file mode 100644
index 0000000..6b4a0c2
--- /dev/null
+++ b/Chapter 4/Exercise 4.2	
@@ -0,0 +1,11 @@
+let age = prompt("How old are you?");
+age = Number(age);
+let message;
+if(age >= 21){
+    message = "You can enter and drink.";
+}else if(age >= 19){
+    message = "You can enter but not drink.";
+}else{
+    message = "You are not allowed in!";
+}
+console.log(message);