ban giai giup minh 2 bai nhe
1. mot cua hang co mot so dau duoc chia hai phan bang nhau .Phan 1 chua trong cac thung 15 lit .phan thu hai chua trong cac thung 20 lit ,tong so dau hai loai la 14 thung .hoi cua hang co bao nhieu thung moi loai
2. mot to cong du dinh san xuat 60 san pham trong 5 ngay nhung co mot cong nhan bi benh phai nghi viec ngay nenso san pham tren duoc san xuat trong 6 ngay .Hoi to cong nhsnco bso nhieu nguoi tham gia san xuat
ghi loi giai please
mot cua hang co 24 thung dung day dau gom 2 loai 45l va 15l.hoi co bao nhieu thung moi loai. biet moi loai thung dung bang nhau tim co bao nhieu loai 15 l
mot thung dung hang hinh hop chu nhat cochieu dai 1.2 m,chieu rong 0.4 va chieu cao la 0.8m
a. tinh the tich cua thung dung hang hinh hop chu nhat do
b.nguoi ta xep cac hop banh hinh lap phuong co canh 0.2m vao day thung dung hang.hoi thung chua bao nhieu hop banh?
c. khi chuyen thung banh ve cua hang,nguoi ta kiem tra co 96 cai banh bi vo.tinh so phan tram cai banh bi vo va tong so banh trong thung,biet rang moi hop co 80 cai banh
Hai thung dau co tong cong 95 lit, biet ti so phan tramcua so dau thung thu nhat va thung thu hai la 90%. Hoi moi thung co bao nhieu lit dau?
Thiet bi may duoc xep vao cac hinh lap phuong co dien tich toan phan la 96 dm vuong. Nguoi ta xep cac hop do vao trong 1 cai thung hinh lap phuong lam bang ton khong co nap. Khi go mot thung nhu the het 3,2 m vuong ton . Hoi moi thung dung duoc bao nhieu hop thiet bi noi tren
1 cua hang co 24 thung dau dung day dau gom 2 loai loai 45l va loai 15l hoi co BN thung moi loai biet so dau o moi thung deu bang nhau
ghi loi giai nhe dung minh se tick cho
co 2 thung dau , thung thu nhat hon thung thu hai la 6 l dau , biet rang 1/6 so l dau cua thung thu nhat thi bang 1/4 so dau cua thung thu hai . hoi moi thung co bao nhieu l dau
1) 2 thung co tat ca 120 lit dau . Do tu Thung thu nhat sang thung thu hai so lit dau bang so dau o thung thu hai . Sau do do tu thung thu hai sang thung thu nhat so lit dau bang so lit dau dang co o thung thu nhat thi so dau o 2 thung bang nhau . Hoi luc dau 2 thung chua bao nhieu lit dau ?
2) 7 nam ve truoc tong so tuoi cua 3 me con la 48 tuoi . 6 nam sau tuoi cua me hon tuoi con nho 30 tuoi va hon con lon 24 tuoi . Tinh tuoi cua me hien nay ?
Cac ban giai chi tiet cho minh nhe !
co 21 thung dau trong do co 7 thung dung day dau, 7 thung dung 1 nua so dau, 7 thung khong co dau. hay chia 21 thung do thanh 3 phan bang nhau?