diff --git a/190521/kthnumber.js b/190521/kthnumber.js
new file mode 100644
index 0000000..dbb0612
--- /dev/null
+++ b/190521/kthnumber.js
@@ -0,0 +1,4 @@
+function solution(array, commands) {
+  return commands.map(([from, to, index]) => array.slice(from - 1, to).sort((x,y) => (x - y).slice())[index - 1])
+} 
+
diff --git a/190527/mockExam.js b/190527/mockExam.js
new file mode 100644
index 0000000..9f3ea56
--- /dev/null
+++ b/190527/mockExam.js
@@ -0,0 +1,21 @@
+function solution(answers) {
+    let answer = [];
+    let supo1 = [1,2,3,4,5];
+    let supo2 = [2,1,2,3,2,4,2,5];
+    let supo3 = [3,3,1,1,2,2,4,4,5,5];
+    let ans1 = howManyCorrect(answers , supo1);
+    let ans2 = howManyCorrect(answers , supo2);
+    let ans3 = howManyCorrect(answers , supo3);
+    let max = Math.max(ans1,ans2,ans3);
+    if( max === ans1) answer.push(1);
+    if( max === ans2) answer.push(2);
+    if( max === ans3) answer.push(3);
+
+    return answer;
+}
+
+function howManyCorrect(ans , supo) {
+    return ans.filter(function(v, i){
+        return v === supo[i % supo.length];
+    }).length
+}
diff --git a/195024/test.js b/195024/test.js
new file mode 100644
index 0000000..3a3890c
--- /dev/null
+++ b/195024/test.js
@@ -0,0 +1,44 @@
+// Version 1
+function solution(citations) {
+  let array = new Array(citations.length).fill(0);
+  let sortedArr = citations.sort((a, b) => b - a);
+  let answer;
+
+  for(let i = 0; i < citations.length; i++) {
+      for(let j = 0; j < citations.length; j++) {
+        if(sortedArr[j] <= sortedArr[i]) {
+              array[(citations.length - 1) - i]++;
+          }  
+      }
+  }
+
+  sortedArr.some((val) => {
+      if(array[sortedArr.indexOf(val)] >= val) {
+          answer = val;
+          return true;
+      }
+  })
+
+  return answer
+}
+
+// Version 2
+function solution(citation) {
+let array = [];
+let sortedArr = citation.sort((a, b) => a - b);
+let answer;
+
+for(let i = citation.length; i > 0; i--) {
+    array.push(i);
+}
+
+sortedArr.some((val, index) => {
+
+    if(val >= array[index]) {
+        answer = array[index];
+        return true;
+    }
+})
+
+return answer === undefined ? 0 : answer;
+}
\ No newline at end of file