Implemented the speaking exercise;

Cleaned up a bit of the code;

src/utils/score.ts

@@ -1,3 +1,5 @@
+import {Module} from "@/interfaces";
+
 type Type = "academic" | "general";
 
 const readingGeneralMarking: {[key: number]: number} = {
@@ -59,3 +61,7 @@ export const calculateBandScore = (correct: number, total: number, module: "read
 
 	return 0;
 };
+
+export const calculateAverageLevel = (levels: {[key in Module]: number}) => {
+	return Object.keys(levels).reduce((accumulator, current) => levels[current as Module] + accumulator, 0) / 4;
+};