diff --git a/Sprint-3/2-practice-tdd/count.js b/Sprint-3/2-practice-tdd/count.js
index 95b6ebb7d4..26a4575e68 100644
--- a/Sprint-3/2-practice-tdd/count.js
+++ b/Sprint-3/2-practice-tdd/count.js
@@ -1,5 +1,5 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  return stringOfCharacters.split(findCharacter).length - 1;
 }
 
 module.exports = countChar;
diff --git a/Sprint-3/2-practice-tdd/count.test.js b/Sprint-3/2-practice-tdd/count.test.js
index 179ea0ddf7..356e782c5e 100644
--- a/Sprint-3/2-practice-tdd/count.test.js
+++ b/Sprint-3/2-practice-tdd/count.test.js
@@ -16,9 +16,33 @@ test("should count multiple occurrences of a character", () => {
   const count = countChar(str, char);
   expect(count).toEqual(5);
 });
+test("should count multiple occurrences of a character", () => {
+  const str = "international";
+  const char = "n";
+  const count = countChar(str, char);
+  expect(count).toEqual(3);
+});
+test("should count multiple occurrences of a character", () => {
+  const str = "crisis";
+  const char = "s";
+  const count = countChar(str, char);
+  expect(count).toEqual(2);
+});
 
 // Scenario: No Occurrences
 // Given the input string `str`,
 // And a character `char` that does not exist within `str`.
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of `char` were found.
+test("should return 0, indicating that no occurrences of `char` were found", () => {
+  const str = "interesting";
+  const char = "b";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
+test("should return 0, indicating that no occurrences of `char` were found", () => {
+  const str = "future";
+  const char = "m";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
diff --git a/Sprint-3/2-practice-tdd/get-ordinal-number.js b/Sprint-3/2-practice-tdd/get-ordinal-number.js
index f95d71db13..3d148bd771 100644
--- a/Sprint-3/2-practice-tdd/get-ordinal-number.js
+++ b/Sprint-3/2-practice-tdd/get-ordinal-number.js
@@ -1,5 +1,18 @@
 function getOrdinalNumber(num) {
-  return "1st";
+  if ([11, 12, 13].includes(num % 100)) {
+    return num + "th";
+  }
+  if (String(num).at(-1) === "1") {
+    return num + "st";
+  }
+  if (String(num).at(-1) === "2") {
+    return num + "nd";
+  }
+  if (String(num).at(-1) === "3") {
+    return num + "rd";
+  } else {
+    return num + "th";
+  }
 }
 
 module.exports = getOrdinalNumber;
diff --git a/Sprint-3/2-practice-tdd/get-ordinal-number.test.js b/Sprint-3/2-practice-tdd/get-ordinal-number.test.js
index adfa58560f..d8d2534934 100644
--- a/Sprint-3/2-practice-tdd/get-ordinal-number.test.js
+++ b/Sprint-3/2-practice-tdd/get-ordinal-number.test.js
@@ -17,4 +17,30 @@ test("should append 'st' for numbers ending with 1, except those ending with 11"
   expect(getOrdinalNumber(1)).toEqual("1st");
   expect(getOrdinalNumber(21)).toEqual("21st");
   expect(getOrdinalNumber(131)).toEqual("131st");
+  expect(getOrdinalNumber(1021)).toEqual("1021st");
+});
+//case 2; Numbers ending with 4,5,6,7,8,9 and 0
+test("should append 'th' for numbers ending with 4,5,6,7,8,9,0", () => {
+  expect(getOrdinalNumber(104)).toEqual("104th");
+  expect(getOrdinalNumber(2000)).toEqual("2000th");
+  expect(getOrdinalNumber(167)).toEqual("167th");
+  expect(getOrdinalNumber(19)).toEqual("19th");
+});
+//case 3; Numbers ending with 11,12,13
+test("should append 'th' for numbers ending with 11,12,13", () => {
+  expect(getOrdinalNumber(1013313)).toEqual("1013313th");
+  expect(getOrdinalNumber(2012)).toEqual("2012th");
+  expect(getOrdinalNumber(16711)).toEqual("16711th");
+});
+//case 4;Numbers ending with 2
+test("should append 'nd' for numbers ending with 2", () => {
+  expect(getOrdinalNumber(102)).toEqual("102nd");
+  expect(getOrdinalNumber(2022)).toEqual("2022nd");
+  expect(getOrdinalNumber(16732)).toEqual("16732nd");
+});
+//case 4;Numbers ending with 3
+test("should append 'nd' for numbers ending with 3", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+  expect(getOrdinalNumber(2023)).toEqual("2023rd");
+  expect(getOrdinalNumber(16733)).toEqual("16733rd");
 });
diff --git a/Sprint-3/2-practice-tdd/repeat-str.js b/Sprint-3/2-practice-tdd/repeat-str.js
index 2af0a2cea7..3aea5bc87a 100644
--- a/Sprint-3/2-practice-tdd/repeat-str.js
+++ b/Sprint-3/2-practice-tdd/repeat-str.js
@@ -1,7 +1,14 @@
-function repeatStr() {
+function repeatStr(str, count) {
   // Your implementation of this function must *not* call String.prototype.repeat (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat).
   // The goal is to re-implement that function, not to use it.
-  return "hellohellohello";
+  let result = "";
+  if (count < 0) {
+    throw new Error("Invalid count");
+  } else {
+    for (let i = 0; i < count; i++) {
+      result += str;
+    }
+    return result;
+  }
 }
-
 module.exports = repeatStr;
diff --git a/Sprint-3/2-practice-tdd/repeat-str.test.js b/Sprint-3/2-practice-tdd/repeat-str.test.js
index a3fc1196c4..ae2de6a192 100644
--- a/Sprint-3/2-practice-tdd/repeat-str.test.js
+++ b/Sprint-3/2-practice-tdd/repeat-str.test.js
@@ -15,18 +15,56 @@ test("should repeat the string count times", () => {
   const repeatedStr = repeatStr(str, count);
   expect(repeatedStr).toEqual("hellohellohello");
 });
+test("should repeat the string count times", () => {
+  const str = "codeyourfuture";
+  const count = 2;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("codeyourfuturecodeyourfuture");
+});
 
 // Case: handle count of 1:
 // Given a target string `str` and a `count` equal to 1,
 // When the repeatStr function is called with these inputs,
 // Then it should return the original `str` without repetition.
-
+test("should repeat the string once", () => {
+  const str = "hello";
+  const count = 1;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("hello");
+});
+test("should repeat the string once", () => {
+  const str = "codeyourfuture";
+  const count = 1;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("codeyourfuture");
+});
 // Case: Handle count of 0:
 // Given a target string `str` and a `count` equal to 0,
 // When the repeatStr function is called with these inputs,
 // Then it should return an empty string.
-
+test("should return an empty string", () => {
+  const str = "hello";
+  const count = 0;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("");
+});
+test("should return an empty string", () => {
+  const str = "codeyourfuture";
+  const count = 0;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("");
+});
 // Case: Handle negative count:
 // Given a target string `str` and a negative integer `count`,
 // When the repeatStr function is called with these inputs,
 // Then it should throw an error, as negative counts are not valid.
+test("should throw an error for negative integer", () => {
+  const str = "hello";
+  const count = -4;
+  expect(() => repeatStr(str, count)).toThrow("Invalid count");
+});
+test("should throw an error for negative integer", () => {
+  const str = "codeyourfuture";
+  const count = -1;
+  expect(() => repeatStr(str, count)).toThrow("Invalid count");
+});