diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
index 117bcb2b6e..7661d75c53 100644
--- a/Sprint-1/1-key-exercises/1-count.js
+++ b/Sprint-1/1-key-exercises/1-count.js
@@ -4,3 +4,5 @@ count = count + 1;
 
 // Line 1 is a variable declaration, creating the count variable with an initial value of 0
 // Describe what line 3 is doing, in particular focus on what = is doing
+
+//Line 3 is a statement. Here we reassign the value of count from 0 to 1 by adding value one to it
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diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js
index 47561f6175..10cc52f0ab 100644
--- a/Sprint-1/1-key-exercises/2-initials.js
+++ b/Sprint-1/1-key-exercises/2-initials.js
@@ -5,7 +5,8 @@ let lastName = "Johnson";
 // Declare a variable called initials that stores the first character of each string.
 // This should produce the string "CKJ", but you must not write the characters C, K, or J in the code of your solution.
 
-let initials = ``;
+let initials = firstName.charAt(0)+middleName.charAt(0)+lastName.charAt(0);
+console.log(initials);
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
 
diff --git a/Sprint-1/1-key-exercises/3-paths.js b/Sprint-1/1-key-exercises/3-paths.js
index ab90ebb28e..1e9adc0328 100644
--- a/Sprint-1/1-key-exercises/3-paths.js
+++ b/Sprint-1/1-key-exercises/3-paths.js
@@ -15,9 +15,21 @@ const base = filePath.slice(lastSlashIndex + 1);
 console.log(`The base part of ${filePath} is ${base}`);
 
 // Create a variable to store the dir part of the filePath variable
+function dirString(){
+    const dirName = filePath.slice(1,lastSlashIndex);
+    return dirName;
+}
+
 // Create a variable to store the ext part of the variable
+function extString(){
+    const lastDotIndex = filePath.lastIndexOf(".");
+    const extName = filePath.slice(lastDotIndex);
+    return extName;
+}
 
-const dir = ;
-const ext = ;
+const dir = dirString(filePath);
+const ext = extString(filePath);
+console.log(dir);
+console.log(ext);
 
 // https://www.google.com/search?q=slice+mdn
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diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js
index 292f83aabb..d8fd5d4bb7 100644
--- a/Sprint-1/1-key-exercises/4-random.js
+++ b/Sprint-1/1-key-exercises/4-random.js
@@ -1,9 +1,18 @@
 const minimum = 1;
 const maximum = 100;
-
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
+console.log(num);
 
 // In this exercise, you will need to work out what num represents?
 // Try breaking down the expression and using documentation to explain what it means
 // It will help to think about the order in which expressions are evaluated
 // Try logging the value of num and running the program several times to build an idea of what the program is doing
+
+//In the declaration of num, we can break it down to below:
+
+//1. A randon number, which is with decimals between 0 and 1, is created by method Math.random()
+//2. The random number in step 1 is multipled by 100. That makes an number with decimals.
+//3. The method Math.floor grounded the number in step 2 down to a whole number between 0 - 99.
+//4. The number from step 3 is added 1, so it makes a whole number between 1-100.
+
+//I think the overall javascript code here is to make a random whole number between 1-100.
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