mot cua hang nhap ve mot so goi banh  sau khi ban het banh cua hang lai 600000d tinh ra lai 15% so voi tien mua biet 1 goi banh gia 25000d hoi cua hang do mua ? goi banh

1 cua hang nhap ve 1 so goi banh. Sau khi ban het so banh do, cua hang duoc lai 622500dong. TInh ra cua hang lai 15% so voi so tien mua. Biet cua hang phai mua moi goi banh voi gia 25000 dong. hoi cua hang da mua bao nhieu goi banh ?

Mot cua hang co 125 thung banh,moi thung co 20 hop banh.Cua hang lai nhan ve them 25thung banh  nua.Hoi cua hang co tat ca bao nhieu hop banh ?

bai1:Mot khu rung hinh chu nhat co chieu dai 3km va chieu rong 2km.Hoi dien tich cua khu rung do bang bao nhieu ki-lo-met vuong?

bai2:mot cua hang nhan ve 186 thung banh, moi thung chua 72 goi banh.Neu tat ca so banh do xep vao cac thung, moi thung dung 120 goi thi can bao nhieu thung de xep het so banh do?

bai3:

a} 240000:80:125            b} {24500-490}:245              c} 750000:{ 25*125}

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

mot cua hang nhan ve mot so banh . Nguoi ban hang lay ra 1/8 so banh de bay ban con lai cat di.sau khi ban ba cai banh o quay ,thi nguoi ban hang thay rang: so cat di bang 10 lan so banh con lai o quay.hoi luc dau nguoi do nhan ve bao nhieu cai banh?

trong mot cua hang co 34.5kg banh va 20.5kg keo. sau khi ban moi loai cung ban mot luong bang nhau thi thi so banh con lai gap 5 lan so keo con lai. hoi moi loai da cung ban di bao nhieu ki-lo-gam

1 ng bo ra 65000₫ ( tien von ) de mua banh keo . sau khi ban het so banh nay thi thu dc 728000₫ . hoi 

a) so tien ban hang bang b/n phan tram so tien von?

b) ng do lai dc b/n phan tram

mot cua hang nhan ve mot so banh . Nguoi ban hang lay ra 1/8 so banh de bay ban con lai cat di.sau khi ban ba cai banh o quay ,thi nguoi ban hang thay rang: so cat di bang 10 lan so banh con lai o quay.hoi luc dau nguoi do nhan ve bao nhieu cai banh?