Cau 1 : ( 10 diem ) Thung thu nhat dung 123 lit dau , thung thu hai dung 1/3 lit dau thung thu nhat . Hoi ca hai thung dung bao nhieu lit dau
Cac bn oi , cac bn hai tra loi cho mik cau nay nhe ! Cau nay de lm chi co loi giai thoi ! Cac bn nho tra loi cho mik cau nay nha
Good bye , thank you yous @ >w< and >-0 I love yous