When a search engine returns 30 pages only 20 of which were relevant while failing to return 40 additional relevant pages, its precision is 20/30 = 2/3 while its recall is 20/60 = 1/3.
Kui otsingumootor tagastab 30 lehte, millest 20 on asjakohased, ja ei leia üles ülejäänud 40 asjakohast lehte, on otsingumootori täpsus 20/30 = 2/3 ning saagis 20/60 = 1/3.