diff --git a/lesson_3/ex1_solution.md b/lesson_3/ex1_solution.md
index 87b31a9..78a7322 100644
--- a/lesson_3/ex1_solution.md
+++ b/lesson_3/ex1_solution.md
@@ -1,11 +1,11 @@
 
-- Image Size: 
-- Container Name: 
-- Container ID: 
-- Exposed port: 
-- Postgres version: 
-- Data Volume (aka PGDATA): 
-- default entrypoint: 
-- default command: 
-- baseline consumption : CPU ___% MEM ___MB  
-- OS: Distro Version Codename (Ubuntu 22.04 jammy)
+- Image Size: 377Mb
+- Container Name: festive_heisenberg
+- Container ID: a09e501aa7d9
+- Exposed port: 5432
+- Postgres version: 15.0
+- Data Volume (aka PGDATA): /var/lib/postgresql/data
+- default entrypoint: docker-entrypoint.sh
+- default command:  ["/bin/sh","-c","#(nop) ", "CMD [\"postgres\"]"]
+- baseline consumption : CPU 0.00% MEM 940KiB  
+- OS: Debian 15.0-1.pgdg110+1
diff --git a/lesson_3/ex1_solution.sh b/lesson_3/ex1_solution.sh
index 5433231..ed6ed60 100644
--- a/lesson_3/ex1_solution.sh
+++ b/lesson_3/ex1_solution.sh
@@ -1 +1,15 @@
-docker pull
+docker pull postgres:latest
+docker image ls postgres
+docker run -it -e POSTGRES_HOST_AUTH_METHOD=trust  --entrypoint /bin/bash postgres
+
+docker ps
+docker image inspect postgres:latest
+
+#Dentro del contenedor:
+
+postgres --version
+
+# Para ver los recursos
+
+docker container stats festive_heisenberg
+
diff --git a/lesson_3/ex2_solution.md b/lesson_3/ex2_solution.md
index a4a3a80..cc7a732 100644
--- a/lesson_3/ex2_solution.md
+++ b/lesson_3/ex2_solution.md
@@ -1,2 +1,8 @@
-REPOSITORY   TAG             IMAGE ID       CREATED       SIZE
-nginx
+REPOSITORY   TAG       IMAGE ID       CREATED      SIZE
+
+nginx        1.22      0ccb2559380c   9 days ago   142MB
+
+nginx        1.22.1    0ccb2559380c   9 days ago   142MB
+
+nginx        stable    0ccb2559380c   9 days ago   142MB
+
diff --git a/lesson_3/ex2_solution.sh b/lesson_3/ex2_solution.sh
index b46f0ec..ce67f0f 100644
--- a/lesson_3/ex2_solution.sh
+++ b/lesson_3/ex2_solution.sh
@@ -1 +1,4 @@
-docker pull
\ No newline at end of file
+docker image pull nginx:1.22.1
+docker image pull nginx:stable
+docker image pull nginx:1.22
+docker image ls nginx