diff --git a/transform.Rmd b/transform.Rmd
index 6ae1c6e..69b995e 100644
--- a/transform.Rmd
+++ b/transform.Rmd
@@ -242,9 +242,9 @@ arrange(df, desc(x))
 1.  Sort `flights` to find the most delayed flights. Find the flights that
     left earliest.
 
-1.  Sort `flights` to find the fastest flights.
+1.  Sort `flights` to find the fastest (highest speed) flights.
 
-1.  Which flights travelled the longest? Which travelled the shortest?
+1.  Which flights travelled the farthest? Which travelled the shortest?
 
 ## Select columns with `select()` {#select}