diff --git a/src/sumOfThree.js b/src/sumOfThree.js
new file mode 100644
index 0000000..9098cdd
--- /dev/null
+++ b/src/sumOfThree.js
@@ -0,0 +1,13 @@
+/**
+ * Returns the sum of three numbers.
+ *
+ * @param {number} a - First number
+ * @param {number} b - Second number
+ * @param {number} c - Third number
+ * @returns {number} The sum of the three numbers
+ */
+const sumOfThree = (a, b, c) => {
+  return a + b + c;
+}
+
+module.exports = sumOfThree
\ No newline at end of file