Solved Challenge!

src/demo6.js

@@ -1,13 +1,21 @@
 const getMaxNumber = (numbersArray) => {
-  // your code here
+  let max = numbersArray.reduce((a, b) =>{ 
+    return Math.max(a,b)
+  });
+  return max;
 }
 
 const getMinNumber = (numbersArray) => {
-  // your code here
+  let min = numbersArray.reduce((a, b) =>{ 
+    return Math.min(a,b)
+  });
+  return min;
 }
 
 const getAverage = (numbersArray) => {
-  // your code here
+  let sum = numbersArray.reduce((a,b) => a + b);
+  sum = sum / numbersArray.length;
+  return sum;
 }
 
 module.exports = { getMaxNumber, getMinNumber, getAverage };