diff --git a/ch05/Exercises/10.txt b/ch05/Exercises/10.txt
index 879d371..1e9daab 100644
--- a/ch05/Exercises/10.txt
+++ b/ch05/Exercises/10.txt
@@ -1,2 +1,5 @@
 The switch statment evalutes 1 % 3 (the remainder of 1 / 3) and prints the result
 in string format. In this case 1 % 3 = 1, so case 0: is executed to print "one".
+But due to the lack of `break`, it will print one more `two`.
+
+So, the answer is `onetwo`.