diff --git a/Practical/Practical Exam/MongoDB/M4 - Aggregation.md b/Practical/Practical Exam/MongoDB/M4 - Aggregation.md
index b823900..2468da4 100644
--- a/Practical/Practical Exam/MongoDB/M4 - Aggregation.md	
+++ b/Practical/Practical Exam/MongoDB/M4 - Aggregation.md	
@@ -168,14 +168,14 @@ for (let i = 1; i <= 10000; i++) {
   db.Employee.insertOne({
     Emp_id: i,
     Name: `Employee ${i}`,
-    Designation: `${Math.floor(Math.random() * 5) + 1}`
+    Designation: `Work ${i*5}`
   });
 }
-// Wait for it to insert 10000 documents
+// Wait for it to insert 10000 documents!
 
 // Time without index
 let startTime = new Date();
-db.Employee.find({ Emp_id: 7500 }).toArray();
+db.Employee.find({ Emp_id: 7500 })
 let endTime = new Date();
 print("Time taken to search without index: " + (endTime - startTime) + " ms");
 
@@ -184,7 +184,7 @@ db.Employee.createIndex( { Emp_id: 1 });
 
 // Time with index
 startTime = new Date();
-db.Employee.find({ Emp_id: 7500 }).toArray();
+db.Employee.find({ Emp_id: 7500 })
 endTime = new Date();
 print("Time taken to search with index: " + (endTime - startTime) + " ms");