Question

[Nguyễn Hoàng Long]

trong mot ky thi tong so diem 6 mon cua 4 hs nhu sau : diem cua nguoi dau tien bamg 12/51 diem 3 nguoi con lai.Cua nguoi thu hai bang 17/48 diem cua 3 nguoi con lai.Diem cua nguoi thu ba bang 19/46 tong so diem cua ba nguoi con lai . Nguoi thu tu duoc 45 diem.Hoi moi nguoi duoc bao nhieu diem