diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..5e2051b 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,15 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    let max = 0;
+    let maxChar = "";
+    const splitLetras = text.split("");
+    splitLetras.map( char=> {
+        const splitCaracter = text.split(char);
+            if (splitCaracter.length > max) {
+                max = splitCaracter.length;
+                maxChar = char;
+            }   
+    });
+
+    return maxChar;
 }
\ No newline at end of file