Các câu hỏi tương tự
Ngoc Bao khoe voi bn hoc ki 1 bai kiem tra cua to chi dat diem kha hoac gioi trong do 65% so bai kiem tra dat diem gioi em hay tinh xem hoc ki 1 Ngoc Bao co bao nhieu bai kiem tra dat diem gioi biet so bai kiem tra dat diem gioi nhieu hon so bai dat kiem tra diem kha la 18 bai
mot hoc sinh lam 35 bai toan, neu lam dung mot bai thi duoc 20 diem, lam khong hoan chinh duoc 5 diem, lamf sai bi tru 10 diem. Tong cong ban duoc 130 diem. Hoi ban lam dung bao nhieu bai? Biet rang co 8 bai chua hoan chinh.
co 4 ban cung thi giai toan nhu sau. moi nguoi phai giai 4 bai toan .neu giai dung 1 bai thi duoc 2 diem ,con neu sai mot bai thi tru 2 diem . neu so diem bi tru bang hoac lon honso diem dat thi coi nhu la 0. trong cuoc thi nay chac chan it nhat co 2 ban cung diem . em giai thich dieu do ? nhanh len, minh can gap
An duoc kiem tra ba bai toan, tinh diem trung binh la 9. Hoi diem moi bai kiem tra cua An la diem nao, biet rang co 1 bai diem 7
lop 5d co 34 hs bai kiem tra van deu duoc 6 8 9 . tong so diem la 288 diem , biet so bai duoc 9 gap 4 lan so bai duoc 8 tinh so bai moi loai
an kiem tra bai toan tinh diem trung binh la 9 hoi moi bai kiem tra cua an la diem nao biet rang co mot bai diem 7
trong tiet kiem tra toan lop 6a so bai dat loai gioi chi bang ( ba phan nam) so bai dat loai kha.tinh ra so bai dat loai kha hon so bai dat loai gioi.so con lai la bai trung binh bang 6.25% tong so loai kha va gioi.hoi
a)moi loai co bao nhieu bai?
b)tong so hoc sinh cua lop biet moi ban nop 1 bai?
Trong ngay hoi vui hoc tap , moi hs tham gia co 15 cau hoi , da tra loi san , hs chi can dien dung hoac sai cho moi cau tra loi . Neu dung 1 cau duoc 5 diem . Neu tra loi sai bi tru 5 diem ,khong lam coi la sai . Ket qua bai kiem tra cua ban Thang dat 25 diem . Hoii ban Thang dung bao nhieu cau ?
ket qua bai thi cuoi ki 1 cua khoi lop 5 mon toan vua qua nhu sau co 1/5 so em duoc xep diem gioi co 48% hoc sinh dat diem kha con lai 16 em dat diem trung binh hoi khoi lop 5 co bao nhieu hoc sinh.