khoi lop 5 cua truong tan tien co 3 lop . so hs cua lop 5a bang 3/8 so hs cua khoi , so hs cua lop 5b bang 2/3 so hs cua loi 5a , lop 5c co 45 hs. khoi lop 5 cua truong tan tien co bao nhieu hoc sinh
lop 5B co so hs gioi nhieu hon 1/5 so hs cua lop la 3 em. So hs con lai nhieu hon 1/2 so hs cua lop la 9 em. Tinh
a) So hs gioi lop 5B.
b) So hs lop 5B
Mot lop hoc co 1/3 so hs nam bang 1/5 so hs nu.So hs nam it hon so hs nu 12 ban,tinh so hs nam va so hs nu cua lop do
1 truong hoc co 700 hs.so hs khoi 5 chiem 20%,so hs khoi 3 chiem 18% so hs toan truong .
a) so hs khoi 5 la bao nhieu?
b) so hs khoi 1,2 va 4 la bao nhieu?
1.lop 5a co mot so hoc sinh ki 1 co 50 % so ban sep hoc lung loai a . 40% so ban sep hoc lung loai b . tinh tong so HS cua lop 5a , biet so HS xep hoc lung loaiâ nhieu hon loai b la 4 ban
mot lop co 60 % hs gioi, 30 % hs kha biet so hoc sinh gioi nhieu hon hs kha 12 ban. tinh so hs ca lop
giup mink nhanh len mink cho 5 t
khoi lop 5 cua mot truong tieu hoc co ba lop voi 115 hoc sinh. biet rang so hoc sinh lop 5B bantg\(\frac{8}{9}\)so HS lop 5A, so hoc sinh lop 5C bang \(\frac{3}{4}\)so hs lop 5B. tinh so hoc sinh moi lop
Mot lop hoc co 520 hoc sinh . So hoc sinh nu it hon so hs nam la 3/4hs . Hoi co bao nhieu hoc sinh nam , hs nu
lop 5a co 40% hoc dinh ls nu so con lai la hoc sinh nam .hoi lop 5a co bao nhieu hoc sinh .biet so hs nam hon hs nua la 8 ban