diff --git a/questions/README.md b/questions/README.md
index 791476a..745b538 100644
--- a/questions/README.md
+++ b/questions/README.md
@@ -45,4 +45,8 @@ selection sort
 ## question no 9
 ```markdown
 binary search
-```
\ No newline at end of file
+```
+## question no 10
+```markdown
+buble sort
+```