lop 5a co 15 ban dang ki hoc ngoai khoa mon van, 12 dang ki ngoai khoa mon toan,trong do co 7 ban dang ki ca van va toan .hoi co bao nhieu ban chi dang ki hoc van, co bao nhieu ban chi dang ki hoc toan[ ai lam nhanh ,dung,co loi giai mk t cho ok?]

Trong 100 em co 75 em thich toan, 60 em thich van.

a. neu co 5 em khong thich ca toan va van thi co bao nhieu em thich ca toan va van.

b. Co nhieu nhat ca toan va van thi co bao nhieu em thich ca toan va van.

c. Co it nhat ca toan va van thi co bao nhieu em thich ca toan va van.

trong so 100 HS co 75 HS thich toan ,60 HS thich van.hỏi a, neu co 5 HS ko thích ca van va toan thi co bao nhieu HS thich ca van va toan

b, co nhieu nhat bao nheu HS thich ca hai mon van toan 

c,co it nhat bao nhieu HS thich ca van va toan

em xin loi sut toan sit sit van sut

TRONG SO 100 HS CO 70 EM THICH TOAN,60 EM THICH VAN NEU CO 5 EM KO THICH VAN VA TOAN THI SO HS THICH TOAN VA VAN LA

To cua toan co 12 ban. Trong mot bai viet chinh ta, Toan mac phai 5 loi, con cac ban khac con lai mac so loi it hon. Hoi co it nhat may ban mac loi nhu nhau

bai 1;mot lop co 53 hoc sinh, qua dieu tra thay 40 hoc sinh thich toannhat bao nh ,30 hoc sinh thich van :

a, neu co 3 hoc sinh khong thich ca 2 mon toan va van thi co bao nhieu hoc sinh thich ca 2 mon toan va van

b,co nhieu nhat bao nhieu hoc sinh thich 2 mon toan va van 

c, co it nhat bao nhieu hoc sinh thich ca 2 mon toan va van

co 22 quyen sach vua van vua toan sach van co 132 trang sach toan co 150 trang tong so trang ca 2 loai sach la 3120trang hoi moi loai co bao nhieu quyen?

lop co 40 hoc sinh 5/8ca LOP thich toan 2/5 ca lop thich van hoi co bao nhieu hoc sinh thich toan co bao nhieu hoc sinh thich van

mot lop hoc co 53 hs dieu tra thay 40 hs thich toan 30 hs thich van hoi co bao nhieu hs thach toan lan van