1 can gom 16 luong.Biet rang 1 can (ta} bang 6 phan 10 kg. Hoi 1 luong vang nang bao nhieu gam

mot mieng dat hinh thang co tong day lon day be va chieu cao la 90 m day be bang 3/4 day lon chieu cao bang 1/2 day lon biet rang cu 2 dam² thi can phai bon 50 kg phan hoi bon ca thua ruong thi can phai co bao nhieu ta phan

Mot manh dat hinh thang co day be bang 180 m , day lon bang 14 phan 9 day be, chieu cao bang 4 phan 7 day lon . Hoi dien tich manh dat bang bao nhieu met vuong , bao nhieu hec ta

150g bang bao nhieu kg phan so

giup toi

co ba doi nhan phan bon ve cham soc cay, ca ba doi nhan so phan bang nhau , lan thu nhat doi mot nhan 2000 kg , doi hai nhan 30 ta , doi ba nhan 4 tan .ca ba doi deu nhan tat ca 36 tan phan . hoi doi mot nhan bao nhieu tan phan ?

tren 1 thua ruong hinh chu nhat co dien tich la 120m2 .Nguoi ta su dung 1 nua dien tich de trong lua ,phan con lai trong ngo hoi:

a,dien tich dat trong lua bang bao nhieu m2 ?

b,neu cu 1m2 thi thu hoach duoc 10 kg thoc voi dien tich trong lua nhu tren hinh nguoi ta thu hoach duoc bao nhieu kg lua?

cua hang ban duoc 1,5 ta gao bang 24 phan tram luong gao cua cua hang do . hoi luc dau cua hang co bao nhieu kg gao

7 ta 43 kg bang bao nhieu ta               0 , 015 bang bao nhieu kg

1 kg gan bang bao nhieu pao<lam tron den chu so thap phan thu2>