Ngoc va Minh moi nguoi mua mot so hop but chi mau , trong moi hop but chi mau , trong moi hop deu co tu hai but tro len va so but o cac hop deu bang nhau . Tinh ra Ngoc mua 20 but , Minh mua 15 but . Hoi moi hop but chi mau co bao nhieu chiec ?

but chi mau cung loai moi hop co nhieu hon 2 but chi nhung it hon 6 but chi tinh ra lop da mua 120 but chi mau 6b mua duoc 130 but mau hoi moi hop mau co bao chiec

moi hop xep 6 coc .Hoi co the xep duoc 130 coc vao nhieu nhat bao nhieu hop nhu the va con thua mau cai coc

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

Mai va Lan moi nhuoi mua cho to minh mot hop but chi mau .mai mua 28 but lan mua 36 but . So but trong moi hop bang nhau va so but lon hon 2

a/goi so but trong moi hop la a .tim quan he giua a voi moi so 28,36,2

b/tim so a noi tren

C/hoi mai mua bao nhieu hop but chi mau?lan mua bao nhieu hop but chi mau

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

lan mua 4 hop but mau het 16000 dong. hoi hai mua 8 hop nhu vay het bao nhieu tien

mik se tik cho bn dau tien

MOT CUA HANG CO  6 HOP BUT CHI NHU NHAU DUNG TONG CONG 144 CAY BUT CHI ,CUA HANG DA BAN HET 4 HOP BUT CHI 

.HOI CUA HANG CON LAI BAO NHIEU CAY BUT CHI

Lan va Hồng múa 1 so but trong moi hop co tu 4 but Trợ Len va so but moi hop bang nhau Lan Múa 24 but hong Múa 18 but hoi trong moi hop co bao nhieu chiec but