How to delete Directory and inside files using Find command

UNIX Solaris
1

I am using the following Command to delete Directory with contents. But this command is deleting inside files only not directories. is there any change need in my command?

find -type f -mtime +3 -exec rm -r {} \;

Thanks

2

To delete the directory itself and all of the files and sub-directories:

rm -f -R  directoryname
3

I got solution for this one i need to change my command like this

4

I got solution for this one i need to change my command like this

find -type d -mtime +3 -exec rm -r {} \;

Or

find -mtime +3 -exec rm -r {} \;

Thanks