Ako imamo

učenika koliko izbornih predmeta maksimalno smijemo ponuditi, a da pri tome možemo garantirati da će barem

odabrati isti predmet.
If we have

students, how many optional subjects can we offer as a maximum, while at the same time we can guarantee that at least

will choose the same subject.
[lang = hr]
Ako imamo $121$ učenika koliko izbornih predmeta maksimalno smijemo ponuditi, a da pri tome možemo garantirati da će barem $21$ odabrati isti predmet.
[/lang]
[lang = en]
If we have $121$ students, how many optional subjects can we offer as a maximum, while at the same time we can guarantee that at least $21$ will choose the same subject.
[/lang]