diff --git a/docs/basic/sql_function.rst b/docs/basic/sql_function.rst
index 0316c18c..3b9e04b6 100644
--- a/docs/basic/sql_function.rst
+++ b/docs/basic/sql_function.rst
@@ -45,7 +45,7 @@ types of vehicles and the pedestrian routing:
     - Bounding box: ``(@PGR_WORKSHOP_LITTLE_NET_BBOX@)``
     - Do not use `steps`, `footway`, `path`
 
-  - Speed is 10%  slower than the Particular vehicles.
+  - Speed is 10%  faster than the Particular vehicles.
 
 - Pedestrians:
 
@@ -167,7 +167,7 @@ Exercise 2: Limiting the road network within an area
 * Create a view ``taxi_net`` for the `taxi`:
 
   * The taxi can only circulate inside this Bounding Box: ``(@PGR_WORKSHOP_LITTLE_NET_BBOX@)``
-  * The taxi speed is 10% slower than the particular vehicle.
+  * The taxi speed is 10% faster than the particular vehicle.
 
 * Verify the reduced number of road segments.
 
@@ -306,7 +306,7 @@ In particular:
 * For ``taxi_net``:
 
   * Similar as the previous one but with ``taxi_net``. (line **3**)
-  * The results give the same route as with ``vehicle_net`` but ``cost`` is higher
+  * The results give the same route as with ``vehicle_net`` but ``cost`` is lower
 
   .. literalinclude:: ../scripts/basic/chapter_7/all_sections.sql
     :language: sql