diff --git a/6.sql b/6.sql
index e69de29..ee8c6ef 100644
--- a/6.sql
+++ b/6.sql
@@ -0,0 +1,9 @@
+-- write a SQL query to find the names of schools (public or charter!) that reported a 100% graduation rate.
+SELECT "name"
+FROM "schools"
+WHERE "id" = (
+    SELECT "school_id"
+    FROM "graduation_rates"
+    WHERE "graduated" = 100
+    )
+;