Национална олимпиада по МАТЕМАТИКА – областен кръг
9 – 12 клас
[pdf http://mon.bg/opencms/export/sites/mon/left_menu/olympiad/exams/2011o_math-9-12kl_den2.pdf 700 700]
РЕШЕНИЯ
[pdf http://mon.bg/opencms/export/sites/mon/left_menu/olympiad/exams/2011o-reshenia_T9-T10.pdf 700 700]
[pdf http://mon.bg/opencms/export/sites/mon/left_menu/olympiad/exams/2011o-reshenia_T11-T12.pdf 700 700]