Bai1:Tim y:
a} {1/4*y-1/8}*3/4=1/4
Bai2:Tinh nhanh tong cua 150 so le lien tiep dau tien .
Bai3:Cua hang ban mot so gao.Sang cua hang ban 2/9so gao;chieu ban 3/7 so gao.So gao ban buoi sang kem buoi chieu 650kg gao.Hoi tong so gao luc cua hang chua ban la bao nhieu kg?Sang;chieuban bao nhieu kg gao?
*Bai4:Tinh tong cua cac so co 2 chu so khac nhau.
moi cua hang sang ban 3/5 tong so gao.buoi chieu ban duoc2/7 tong so gao.tinh ra buoi sang cua hang ban duocnhieu hon buoi chieu 77kg gao.hoimoi buoi cua hang ban bao nhieu kg gao?
Mot cua hang co 280kg gao . buoi sang cua hang ban duoc 2/7 buoi chieu cua hang ban duoc 3/4 so gao buoi sang ban . Hoi cua hang con lai bao nhieu kg gao ?
mot cua hang co 2tan 5ta gao buoi sang ban 2/5 so gao bui chieu ban tiep 2/3 so gao con lai hoi cua hang con lai bao nhieu ki lo gam gao
Mot cua hang co 75 ta gao . Buoi sang ban duoc 15 ta , buoi chieu ban 3/5 so gao con lai . Hoi ca hai buoi cua hang ban bao nhieu ta gao
cua hang co 1ta gao nep, buoi sang nguoi ta ban 32 kg gao nep. buoi chieu ban 3/4 so gao nep con lai . hoi cuoi ngay cua hang con lai bao nhieu kg gao nep?
1 cua hang gao co mot so gao nep va te .Biet rang so khi ban di 1/4 gao te va 1/6 gao nep thi so gao con lai bang nhau .Hoi luc dau cua hang co bao nhieu kg gao nep biet tong so gao la 570
buoi sang cua hang ban duoc 145kg gao buoi chieu ban duoc 190kg gao. so tien gao ban trong ngay hom do la 4020000dong.hoi gia tien 1kg gao la bao nhieu dong
mot cua hang co 36 bao gao giong nhau, moi bao chua 50kg gao. Cua hang da ban duoc 1/3 tong so gao. Hoi cua hang da ban di bao nhieu ki - lo- gam gao ? (giai bang 2 cach)
Mot cua hang co 36 bao gao giong nhau, moi bao chua 50kg gao. Cua hang da ban duoc 1/3 tong so gao. Hoi cua hang da ban di bao nhieu ki-lo-gam gao? (giai bang hai cach)
