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daca asezam elevi unei clase cate2 in banca rămân 2 elevi in picioare daca pune cate trei in banca raman 5 banci libere​

Răspuns :

ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll + 2 elevi

lll lll lll lll lll lll lll lll lll lll lll lll + 5 bănci

17 bănci

36 elevi