I installed qt5 in my computer as shown below:
ed@Mars:/usr/lib/qt5/bin$ ls -la total 7956 drwxr-xr-x 2 root root    4096 may 30 20:42 . drwxr-xr-x 3 root root    4096 abr  8 10:26 ..
-rwxr-xr-x 1 root root    6340 abr  9  2020 fixqt4headers.pl
-rwxr-xr-x 1 root root  907576 abr  9  2020 moc
-rwxr-xr-x 1 root root  301360 abr  9  2020 qdbuscpp2xml
-rwxr-xr-x 1 root root   88288 abr  9  2020 qdbusxml2cpp
-rwxr-xr-x 1 root root 1762296 abr 10  2020 qdoc
-rwxr-xr-x 1 root root  211248 abr 10  2020 qhelpgenerator
-rwxr-xr-x 1 root root  227632 abr  9  2020 qlalr
-rwxr-xr-x 1 root root 2972304 abr  9  2020 qmake
-rwxr-xr-x 1 root root   71904 abr 10  2020 qtattributionsscanner
-rwxr-xr-x 1 root root   43232 abr  9  2020 qvkgen
-rwxr-xr-x 1 root root  846136 abr  9  2020 rcc
-rwxr-xr-x 1 root root   48144 abr  9  2020 syncqt.pl
-rwxr-xr-x 1 root root  629040 abr  9  2020 uic
however, when I check my qmake version Ubuntu 20.04 displays:
ed@Mars:/usr/lib/qt5/bin$ qmake --version
Command 'qmake' not found, but can be installed with:
sudo apt install qtchooser
Any hint on how to make qmake visible and executable,