diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
index 117bcb2b6..4a673b9ac 100644
--- a/Sprint-1/1-key-exercises/1-count.js
+++ b/Sprint-1/1-key-exercises/1-count.js
@@ -4,3 +4,4 @@ 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
+// In line 3 we are adding 1 to the current value of count, the = symbole is the assignment operator which means store the value on the right side into the variable on the left side
\ No newline at end of file
diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js
index 47561f617..5b2d92088 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[0]+middleName[0]+lastName[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 ab90ebb28..df35c5df4 100644
--- a/Sprint-1/1-key-exercises/3-paths.js
+++ b/Sprint-1/1-key-exercises/3-paths.js
@@ -11,13 +11,18 @@
 
 const filePath = "/Users/mitch/cyf/Module-JS1/week-1/interpret/file.txt";
 const lastSlashIndex = filePath.lastIndexOf("/");
+console.log(lastSlashIndex);
 const base = filePath.slice(lastSlashIndex + 1);
+console.log(base);
 console.log(`The base part of ${filePath} is ${base}`);
 
 // Create a variable to store the dir part of the filePath variable
 // Create a variable to store the ext part of the variable
 
-const dir = ;
-const ext = ;
+
+const dir = filePath.slice(filePath[0],lastSlashIndex);
+const ext = filePath.slice(filePath.lastIndexOf("."),filePath.length);
+
+console.log(`The dir Part is ${dir} and the ext Part is ${ext}`);
 
 // https://www.google.com/search?q=slice+mdn
\ No newline at end of file
diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js
index 292f83aab..cfa5772e0 100644
--- a/Sprint-1/1-key-exercises/4-random.js
+++ b/Sprint-1/1-key-exercises/4-random.js
@@ -1,9 +1,15 @@
 const minimum = 1;
 const maximum = 100;
 
-const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
+let random_number=Math.random();
+const num = Math.floor(random_number * (maximum - minimum + 1)) + minimum;
+
+console.log(`Our random number is ${random_number} and if we multiply it by ${maximum+minimum+1} it will be = ${random_number * (maximum - minimum +1) + minimum} and the closest down round is ${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
+
+
+//Num represent integer number round between 1 and 100
\ No newline at end of file
diff --git a/Sprint-1/2-mandatory-errors/0.js b/Sprint-1/2-mandatory-errors/0.js
index cf6c5039f..65ad3030d 100644
--- a/Sprint-1/2-mandatory-errors/0.js
+++ b/Sprint-1/2-mandatory-errors/0.js
@@ -1,2 +1,2 @@
-This is just an instruction for the first activity - but it is just for human consumption
-We don't want the computer to run these 2 lines - how can we solve this problem?
\ No newline at end of file
+//This is just an instruction for the first activity - but it is just for human consumption
+//We don't want the computer to run these 2 lines - how can we solve this problem?
\ No newline at end of file
diff --git a/Sprint-1/2-mandatory-errors/1.js b/Sprint-1/2-mandatory-errors/1.js
index 7a43cbea7..6fcf8c8de 100644
--- a/Sprint-1/2-mandatory-errors/1.js
+++ b/Sprint-1/2-mandatory-errors/1.js
@@ -1,4 +1,4 @@
 // trying to create an age variable and then reassign the value by 1
-
-const age = 33;
+// it's a const variable , const variable can't be changed we need to change it to let 
+let age = 33;
 age = age + 1;
diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js
index e09b89831..b52ee48ab 100644
--- a/Sprint-1/2-mandatory-errors/2.js
+++ b/Sprint-1/2-mandatory-errors/2.js
@@ -1,5 +1,6 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
 // what's the error ?
-
-console.log(`I was born in ${cityOfBirth}`);
+//cityofbirth is intialized after console.log which can not be readable only if it is before the console.log
 const cityOfBirth = "Bolton";
+console.log(`I was born in ${cityOfBirth}`);
+
diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js
index ec101884d..148182d8c 100644
--- a/Sprint-1/2-mandatory-errors/3.js
+++ b/Sprint-1/2-mandatory-errors/3.js
@@ -1,9 +1,11 @@
-const cardNumber = 4533787178994213;
+const cardNumber = '4533787178994213';
 const last4Digits = cardNumber.slice(-4);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working
 // Before running the code, make and explain a prediction about why the code won't work
+//.slice is working only on string or array and cardNumber values are integer
 // Then run the code and see what error it gives.
+//The error slice is not a function
 // Consider: Why does it give this error? Is this what I predicted? If not, what's different?
 // Then try updating the expression last4Digits is assigned to, in order to get the correct value
diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js
index 21dad8c5d..c5bbb8056 100644
--- a/Sprint-1/2-mandatory-errors/4.js
+++ b/Sprint-1/2-mandatory-errors/4.js
@@ -1,2 +1,4 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
\ No newline at end of file
+const _12HourClockTime = "20:53";
+const _24hourClockTime = "08:53";
+
+//Javascript variables name can not start with a number, only a letter,underscore or dollar sign
\ No newline at end of file
diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
index e24ecb8e1..d7b7d78b7 100644
--- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
@@ -2,7 +2,7 @@ let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
 
 carPrice = Number(carPrice.replaceAll(",", ""));
-priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
 
 const priceDifference = carPrice - priceAfterOneYear;
 const percentageChange = (priceDifference / carPrice) * 100;
@@ -12,11 +12,16 @@ console.log(`The percentage change is ${percentageChange}`);
 // Read the code and then answer the questions below
 
 // a) How many function calls are there in this file? Write down all the lines where a function call is made
+//We have called function number twice , line 4 and line 5
 
 // b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
+//line 5 replaceall method doesn't have the correct paramter as comma is missing 
 
 // c) Identify all the lines that are variable reassignment statements
+//line 4 and 5 are variable reassignment 
 
 // d) Identify all the lines that are variable declarations
+//line 1,2,7 and 8 are lines for variable declarations
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+//replaceall method replace the existent variable with different variable given on paramter for both
\ No newline at end of file
diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js
index 47d239558..c1b61baf7 100644
--- a/Sprint-1/3-mandatory-interpret/2-time-format.js
+++ b/Sprint-1/3-mandatory-interpret/2-time-format.js
@@ -1,4 +1,4 @@
-const movieLength = 8784; // length of movie in seconds
+const movieLength = 1000000; // length of movie in seconds
 
 const remainingSeconds = movieLength % 60;
 const totalMinutes = (movieLength - remainingSeconds) / 60;
@@ -12,14 +12,20 @@ console.log(result);
 // For the piece of code above, read the code and then answer the following questions
 
 // a) How many variable declarations are there in this program?
+//6 variables 
 
 // b) How many function calls are there?
+//We have no function called 
 
 // c) Using documentation, explain what the expression movieLength % 60 represents
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
+//This represent the rest seconds after calculating ho many minutes , as % will give the rest
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
+//Totalminutes will show how many minutes in the movie
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
+//result variable will show the exact film duration in hours, minutes and seconds i prefer calling the variable name movie_duration
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+//Correct this code will work for all values
\ No newline at end of file
diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
index 60c9ace69..7d61fcdf6 100644
--- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js
+++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
@@ -1,20 +1,24 @@
-const penceString = "399p";
+const penceString = "399p"; //initialises a string variable with the value "399p"
 
 const penceStringWithoutTrailingP = penceString.substring(
   0,
   penceString.length - 1
-);
+); //This variable will have value of 399
+console.log(penceStringWithoutTrailingP);
+
+const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"); //This variable will have value of 399 without adding any 0 because target length already 3
+console.log(paddedPenceNumberString);
 
-const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
 const pounds = paddedPenceNumberString.substring(
   0,
   paddedPenceNumberString.length - 2
-);
+); // This variable value will be 3
+console.log(pounds);
 
 const pence = paddedPenceNumberString
-  .substring(paddedPenceNumberString.length - 2)
-  .padEnd(2, "0");
-
+  .substring(paddedPenceNumberString.length - 2)//Here we will copy last 99
+  .padEnd(2, "0"); //padend function will not works because target length already 2
+console.log(pence);
 console.log(`£${pounds}.${pence}`);
 
 // This program takes a string representing a price in pence
diff --git a/Sprint-1/4-stretch-explore/chrome.md b/Sprint-1/4-stretch-explore/chrome.md
index e7dd5feaf..cc4ea113c 100644
--- a/Sprint-1/4-stretch-explore/chrome.md
+++ b/Sprint-1/4-stretch-explore/chrome.md
@@ -11,8 +11,12 @@ In the Chrome console,
 invoke the function `alert` with an input string of `"Hello world!"`;
 
 What effect does calling the `alert` function have?
+//Alert function showing alert on your browser
 
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 
 What effect does calling the `prompt` function have?
+//prompt function is an alert function that can store data into variables
+
 What is the return value of `prompt`?
+//undefined
diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md
index 0216dee56..434bb1457 100644
--- a/Sprint-1/4-stretch-explore/objects.md
+++ b/Sprint-1/4-stretch-explore/objects.md
@@ -7,10 +7,14 @@ Open the Chrome devtools Console, type in `console.log` and then hit enter
 What output do you get?
 
 Now enter just `console` in the Console, what output do you get back?
-
+ƒ log() { [native code] }
 Try also entering `typeof console`
+object
 
 Answer the following questions:
 
 What does `console` store?
+Console stores all command that you can need to debug the code
 What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
+Console.log will display the code to the console , while console.assert is meant to test your code and show you the message you are including 
+. to choose which built in function from library of console.
diff --git a/Sprint-1/readme.md b/Sprint-1/readme.md
index 62d24c958..3b731d881 100644
--- a/Sprint-1/readme.md
+++ b/Sprint-1/readme.md
@@ -33,3 +33,6 @@ https://developer.mozilla.org/en-US/docs/Web/JavaScript
 ## 4 Explore - Stretch 💪
 
 This stretch activity will get you to start exploring new concepts and environments by yourself. It will do so by prompting you to reflect on some questions.
+
+
+Working on Sprint 1