diff --git a/Programmers/exam47.js b/Programmers/exam47.js
new file mode 100644
index 0000000..d26e588
--- /dev/null
+++ b/Programmers/exam47.js
@@ -0,0 +1,3 @@
+function solution(box, n) {
+  return box.reduce((a, b) => a * ~~(b / n), 1);
+}