Nam 2003 gia dinh bac Hoa thu hoach dc 8 tan thoc . Nam 2008 gia dinh bac Hoa thu hoach dc 8,5 tan thoc
a, Hoi so voi nam 2003 , nam 2008 so thoc ma gd bac Hoa thu hoach tang them bao nhieu phan tram ?
b, Neu so voi nam 2008, nam 2013 so thoc cung tang them bay nhiu phan tram thi nam 2013 gd bac Hoa thu hoach dc bao nhieu tan thoc ?
cac bn giup mk nha ai dung mk tich cho