phong hop A co 12 day ghe , moi day ghe co 11 nguoi ngoi . phong hop B co 14 day ghe ,moi day ghe co 9 nguoi ngoi . trong cac cau duoi day , cau nao dung , cau nao sai ? a , phong hop A co nhieu hon phong hop B 9 nguoi . b, phong hop A co nhieu hon phong hop B 6 nguoi . c , phong hop A co it hon phong hop B 6nguoi . d , hai phong hop co so nguoi nhu nhau .
phong hop A co 15 day ghe,moi day ghe co 11 cho goi.Phong hop B co 21 day ghe,moi day ghe co 8 cho ngoi.Hoi phong hop nao co nhieu cho ngoi hon va nhieu hong bao nhieu cho ngoi.
giup minh voi
trong mot cuoc hop co tat ca 240 dai bieu . nguoi ta xep 4 day ghe , moi day co 15 cai ghe dai . hoi moi cai ghe co may nguoi ngoi ?
mot quay hang nhap ve mot hom xa phong,nguoi do de 1/4 so hop o quay de ban,co mot nguoi den mua 80 hop,nguoi ban so xa phong o quay bang 1/2 so hop con lai o hom.hoi hom do dong bao nhieu xa phong?
trong phong hop co 45 nguoi . moi nguoi deu phai bat tay nhau mot lan . hoi co bao nhieu cai bat tay
TRUONG TIEU HOC HOA BINH CO 19 PHONG HOC , MOI PHONG HOC GOM 3 DAY BAN GHE , MOI DAY CO 6 BO BAN GHE HOC SINH . HOI TRUONG TIEU HOC HOA BINH CO TAT CA BAO NHIEU BO BAN GHE HOC SINH ?
AI NHANH MINH TICK !
trong phong co tat ca 50 ban va ghe nguoi ta dem thay co 160 chan ban va ghe jay tinh xem co bao nhieu chan ban va ghe biet moi ban co 4 chan moi cai ghe co 3 chan
co 90 hop but dung so but nhu nhau. tumoi hop do nguoi ta lay ra 2 but thi so but con lai o trong 90 hop dung bang so but co trong 75 hop nguyen ban dau. hoi moi hop nguyen ban dau co bao nhieu but.giai ro
Co 60 hop but nhu nhau.Tu moi hop nguoi ta lay 12 cai but thi so but con lai trong 60 hop dung bang 36 hop nguyen ban dau .Hoi moi hop co bn cai but?
mot nguoi mua 5 hop but chi mau,loai moi hop co 8 chiec va 5 hop but ch mau,loai moi hpo co 12 chiec.hoi nguoi do da mua tat ca bao nhieu chiecbut chi mau
