diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..3e46085 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,12 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    let letraRepetida;
+    let str = text.toLowerCase().replace(/\,*\s/g, "").split("", text.length);
+    for(let i = 0; i < text.length; i++){
+        for(let maisRepetida = i + 1; maisRepetida < text.length; maisRepetida++){
+            letraRepetida = str[i];
+        }   
+    }
+    
+    return letraRepetida;
 }
\ No newline at end of file