khi tra bai kiem tra cua lop 5a co giao noi : so diem 10 chiem 25%, SO diem 9 it hon so diem 10 la 5%biet rang co tat ca 18 ban diem 9 va 10 hoi lop 5a co bao nhieu hs

Tra bai kiem tra mon toan cua lop 5A CO GIAO NOI:<So diem 10chiem 25%,so diem 9 hon so diem 10 la 6,25% nhu vay co 18 ban duoc diem 10 va diem 9 tat ca cac ban hoc sinh trong lop hoi co bao nhieu hoc sinh duoc diem 9 

sau 1 đợt thi đua đầu năm tổng śố diêm ma lop 5b dat duoc kem lop 5a la 25 diem. neu gap doi so diem lop 5a va gap 3 lan so diem cua lop 5b thi lop 5b se hon lop 5a la 75 diem.hoi moi lop dat bao nhieu diem

lop 5a co 43 hoc sinh . Trong mot bai kiem tra ca lop deu dat 9 hoac 10 .Tong so diem cua ca lop la 406 diem . Hoi co bao nhieu ban dat diem 9 bao nhieu ban dat 10

giup mik voi

khi tra bai kiem tra lop 5a co giao noi so diem 10 chiem 25% ,so diem 9 chiem it hon so diem 10 la 5% .BIET  LOP 5A CO20 hoc sinh hoi lop 5a co bao nhieu ban dat diem 9, bao nhieu ban dat diem 10

thi ky 1 ca lop 5a,5b,5c co so diem gioi so diem lop 5a bang 1/2 tong so diem 5b va 5c so diem gioi cua 5b bang 2/3 tong so diem2 lop kia.lop 5c co 16 diem gioi . tinh so diem gioi cua 3 lop

tong ket dot thi dua hoc tot lap thanh tich chao mung ngay thanh lap dang ,so diem 10 cua 4 to lop 5 a dat nhu sau. to 1 bang 1/2 tong so diem 10 cua 3 to con lai ,so diem 10 cua to 2 bang 1/3 tong so diem 10 cua 3 to con lai .so diem 10 cua to 3 bang 1/4so diem 10 cua 3 to con lai ,so diem 10 cua to 4 la 26 diem 10 . hoi lop 5a dat bao nhieu diem 10 . moi to dat bao nhieu diem 10 .nho cac ban giup minh

lop 5b co bon to thi dua ,so diem muoi cua to mot =\(\frac{1}{2}\)cua ba to con lai,so diem muoi cua to hai =\(\frac{1}{3}\)cua ba con lai,so diem muoi cua to ba =\(\frac{1}{4}\)cua ba to con lai ,to bon co 26 diem muoi .hoi moi to co bao nhieu diem muoi

cuoi hoc ki 1 , bai kiem tra mon toan lop5a co so hoc sinhdat diem gioi bang 3/7 so hoc sinh con lai cua lop. giua hoc ki 2, bai kiem tra mon toan cua lop co them 3 hoc sinh dat diem gioi nen so hoc sinh dat diem gioi cua lop bang2/3so hoc sinh con lai cua lop. hoi giua hoc kì 2 bai kiem tra mon toán của lớp 5a có bao nheu hoc sinh dat diem gioi? biet rang so hoc sinh cua lop 5a la khong doi