diff --git a/packages/example/src/1week/URL/addQuery/__submit__/minsoo-web.test.ts b/packages/example/src/1week/URL/addQuery/__submit__/minsoo-web.test.ts
new file mode 100644
index 0000000..e2624e9
--- /dev/null
+++ b/packages/example/src/1week/URL/addQuery/__submit__/minsoo-web.test.ts
@@ -0,0 +1,101 @@
+import { addQuery, getHashPart, replaceKeyValue } from './minsoo-web'
+
+describe('getHashPart', () => {
+  it('case 1', () => {
+    expect(getHashPart('minsoo#foo')).toEqual({
+      nonHash: 'minsoo',
+      hash: '#foo',
+    })
+  })
+
+  it('case 2', () => {
+    expect(getHashPart('http://www.minsoo#foo')).toEqual({
+      nonHash: 'http://www.minsoo',
+      hash: '#foo',
+    })
+  })
+
+  it('case 3', () => {
+    expect(getHashPart('http://www.minsoo')).toEqual({
+      nonHash: 'http://www.minsoo',
+      hash: '',
+    })
+  })
+
+  it('case 4: 일반적이진 않지만, 의도치 않게 해시가 여러개 들어가있는 경우', () => {
+    expect(getHashPart('http://www.minsoo#foo#minsoo')).toEqual({
+      nonHash: 'http://www.minsoo',
+      hash: '#foo#minsoo',
+    })
+  })
+})
+
+describe('replaceKeyValue', () => {
+  it('case 1', () => {
+    expect(replaceKeyValue('minsoo?key=foo', 'key', 'bar')).toBe(
+      'minsoo?key=bar',
+    )
+  })
+
+  it('case 2', () => {
+    expect(replaceKeyValue('minsoo?foo=foo', 'key', 'bar')).toBe(
+      'minsoo?foo=foo',
+    )
+  })
+
+  it('case 3', () => {
+    expect(replaceKeyValue('minsoo?key=foo&key=baz', 'key', 'bar')).toBe(
+      'minsoo?key=bar&key=bar',
+    )
+  })
+})
+
+describe('addQuery', () => {
+  test('case 0: URL 형식이 굳이 아니여도 동작', () => {
+    expect(addQuery('www.linkedin.com/?name=elon#top', 'name', 'musk')).toBe(
+      'www.linkedin.com/?name=musk#top',
+    )
+  })
+
+  test('case 1', () => {
+    expect(addQuery('https://www.linkedin.com/', 'key', 'value')).toBe(
+      'https://www.linkedin.com/?key=value',
+    )
+  })
+
+  test('case 2: 기존 URL에 이미 쿼리가 있는 경우', () => {
+    expect(
+      addQuery('https://www.linkedin.com/?name=elon', 'key', 'value'),
+    ).toBe('https://www.linkedin.com/?name=elon&key=value')
+  })
+
+  test('case 3: 기존 URL에 hash가 있는 경우', () => {
+    expect(
+      addQuery('https://www.linkedin.com/?name=elon#top', 'key', 'value'),
+    ).toBe('https://www.linkedin.com/?name=elon&key=value#top')
+  })
+
+  test('case 4: 기존 쿼리와 추가하려는 쿼리의 key가 동일한 경우', () => {
+    const URL = 'https://www.linkedin.com/?name=elon#top'
+
+    expect(addQuery(URL, 'name', 'musk')).toBe(
+      'https://www.linkedin.com/?name=musk#top',
+    )
+
+    expect(addQuery(URL, 'name', 'musk')).toBe(
+      'https://www.linkedin.com/?name=musk#top',
+    )
+  })
+
+  test('case 5: 기존 쿼리와 추가하려는 쿼리의 key가 동일한 경우', () => {
+    const URL = 'https://www.linkedin.com/?name=elon&name=minsoo#top'
+
+    expect(addQuery(URL, 'name', 'musk')).toBe(
+      'https://www.linkedin.com/?name=musk&name=musk#top',
+    )
+
+    expect(addQuery(URL, 'name', 'musk')).toBe(
+      'https://www.linkedin.com/?name=musk&name=musk#top',
+    )
+  })
+})
diff --git a/packages/example/src/1week/URL/addQuery/__submit__/minsoo-web.ts b/packages/example/src/1week/URL/addQuery/__submit__/minsoo-web.ts
new file mode 100644
index 0000000..46a6496
--- /dev/null
+++ b/packages/example/src/1week/URL/addQuery/__submit__/minsoo-web.ts
@@ -0,0 +1,65 @@
+const hasIncludes = (url: string, value: string): 'YES' | 'NO' =>
+  url.includes(value) ? 'YES' : 'NO'
+
+export const getHashPart = (
+  text: string,
+): { nonHash: string; hash: string } => {
+  const indexOfHash = text.indexOf('#')
+
+  if (indexOfHash >= 0) {
+    return {
+      nonHash: text.slice(0, indexOfHash),
+      hash: text.slice(indexOfHash),
+    }
+  }
+
+  return {
+    nonHash: text,
+    hash: '',
+  }
+}
+
+export const replaceKeyValue = (
+  url: string,
+  key: string,
+  newValue: string | number,
+) => {
+  const regExp = new RegExp(`${key}=([^&]*)`, 'g')
+  if (url.match(regExp)) {
+    return url.replace(regExp, `${key}=${newValue}`)
+  }
+
+  return url
+}
+
+/**
+ * 출제자: 예진님 (yejineee)
+ * URL의 쿼리스트링 관련 유틸 함수를 계산 을 최대한 이용하여 만들기
+ *
+ * - 해쉬가 있다면, 유지해야 함
+ * - 기존 쿼리가 있다면, 유지해야 함
+ * - 기존 쿼리와 추가하려는 쿼리의 key가 동일하다면, 기존 쿼리가 대체됨
+ */
+
+export const addQuery = (
+  originURL: string,
+  key: string,
+  value: string | number,
+) => {
+  const { nonHash, hash } = getHashPart(originURL)
+
+  let returnUrl = nonHash
+  let connector = '?'
+
+  if (hasIncludes(originURL, '?') === 'YES') {
+    connector = '&'
+  }
+
+  returnUrl += `${connector}${key}=${value}`
+
+  if (hasIncludes(originURL, `?${key}`) === 'YES') {
+    returnUrl = replaceKeyValue(nonHash, key, value)
+  }
+
+  return returnUrl + hash
+}