diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..4e5fb3e 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,11 @@
 export function mostUsedChar(text) {
-    // implementar logica aqui
-    return ""
-}
\ No newline at end of file
+  let count = 0,
+    letter = "";
+  text.split("").forEach(function (char) {
+    if (text.split(char).length > count) {
+      max = text.split(char).length;
+      letter = char;
+    }
+  });
+  return letter;
+}