lop 5a co 1 phan 2 la hs gioi , 1phan 3 la hs kha , con lai la trung binh . hoi lop 5a co may hs gioi , biet gioi va kha la 30 em
1 lop co 25% hs gioi , 55% hs kha con lai la hs trung binh . Tinh so hoc sinh cua lop do bt so hs trung binh la 5 bn
Lop 6A co 32 HS. Cuoi ki duoc xep 3 loai la gioi , kha va trung binh. Trong do so HS gioi chiem 25 % so HS ca lop. So HS trung binh bang \(\frac{1}{3}\) so HS con lai
a) Tinh so HS gioi, kha va trung binh cua lop do.
b) Tinh ti so phan tram cua so HS trung binh so voi so HS ca lop
ai nhanh cho 1 like
lop 5a co so hs gioi bang 3phan 5 tong so hs so hoc sinh kha bang 1 phan 2 so hoc sinh gioi, con lai la 5 hoc sinh trung binh
coui hoc ki 1 hs lop 5a deu dat luc hoc kha hoac gioi trong do so hs gioi chiem 60 % so hs kha nhung chi tieu phan dau cua lop la cuoi nam so hs gioi dat 60 % do do so voi cuoi ki lop 5a phai co them 9 hs nua dat hoc luc gioi hoi lop 5a co bao nhieu hs biet rang trong ca nam hoc lop 5a khong co thay doi ve si so
Lop 5a co 40 hs , trong do co 7/10 hs loai kha,2/10 so hs dat loai gioi,con lai la hs dat loai trung binh.Hoi lop co bao nhieu hs loai trung binh
1 truong tieu hoc co 800 hs. so hs gioi chiem 13,5% so hs toan truong, so hoc sinh trung binh va yeu la 476 em, con lai la hs tien tien. hoi:
a) truong do co bao nhieu hs dat danh hieu hs gioi?
b) so hs tien tien chiem bao nhieu phan tram so hs toan truong?
Lop 5a co 1/8 so hoc sinh la hoc sinh gioi, 1/2 so hoc sinh a hoc sinh kha ,con lai la hoc sinh trung binh . Hoi so hoc sinh trung binh chiem bao nhieu phan tram hoc sinh ca lop
lop 5a co 1/8 so hoc sinh la gioi , 1/2 kha , con lai la trung bainh. hoi so hoc sinh trung binh chiem bao nhieu phan tram so hoc sinh ca lop?