Nam 2003 gia dinh bac hoa thu hoach duoc 8 tan thoc. Nam 2008 gia dinh bac hoa thu hoach duoc 8.5 tan thoc.
Hối voi nam 2003, nam 2008 so thoc ma gia dinh bac hoa thu hoach tang them bao nhieu phan tram?
Neu so voi nam 2008, nam 2013 so thoc cung tang them bay nhieu phan tram thi nam 2013 gia dinh bac hoa thu hoach duoc bao nhieu tan thoc ?