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 .
A ] Hoi so voi nam 2003 , nam 2008 so thoc ma gia dinh bac Hoa thu hoach tang them bao nhieu phan tram ?
B ] Neu so voi nam 2008 , nam 2013 so thoc cung tang them bay nhieu phan tram thi nam 2013 thi gia dinh bac Hoa
thu hoach duoc bao nhieu tan thoc ?