co 4 thung chua dau thung 1 chua 32 ldau thung 2 chua 38 l dau thung 3 chua so dau bang trung binh cong so dau cua thung 1 va thung 2 thung thu 4 chua so dau it hon trung binh cong cua so dau ca 4 thung la 6 lit thuy thu 4 chua bao nhieu l dau

giai giup minh na

co 3 thung dau trung binh moi binh chua 31 lit .neu khong ke thung thu nhat thi trung binhmoi thung con lai chua 33 lØ ,biet rang thung thu hai chua nhieu hon thung thu nhat 9 lit .hoi moi thung chua bao nhieu lit

co bon thung dau chua thung thu nhat chua 32 lit dau thung thu hai chua 38 lit dau thung ba chua bang trung binh cong cua thung thu nhat va thu hai thung thu tu chua it hon trung binh cong cua ca bon thung la 6lit hoi thung thu bon chua bao nhieu lit dau

trung binh cong so dau dung o 3 thung la 20l biet so l dau o thung thu nhat băng 1/3 thung thu 2 so l dau o thung thu 3 gap doi so l dau o thung thu 1 hoi moi thung dung bao nhieu l dau

co 3 thung dau trung binh moi thung dung 31 l dau, neu khong ke tung thu 1 thi trung binh moi thung con 33 l, biet thung thu 2 hon thung thu1 la 9 l. Hoi moi thung co ? l dau{ cach lam}

hai thung chua 86 l dau neu do 9 l dau tu thung thu 1 sang thung thu 2 thi so dau o thung thu 2nhieu hon so dau con lai o thung thu 1 la 14l hoi lucs dau moi thung chua bao nhieu l dau

co hai thung dug dau . nguoi ta lay ra 15 lit dau tu thung thu nhat thi so dau con lai bang 1/3 so dau trong thung thu hai .tiep tuc lay ra o thung thu hai 5 lit dau thi trong thung con lai 31 lit . tinh so dau chua trong moi thung .

ba thung chua 540 lit dau.Biet so dau thung hai bang \(\frac{3}{7}\)so dau thung ba. So dau thung mot hon so dau thung hai la 20 lit. Tim so dau moi thung ? 

ai nhanh tay tick 5 LAI NHE !

3 thung dau chua 220 l dau. Neu ban di 1/3 so dau thung 1, 1/4 so dau thung 2 va do them vao thung 3 la 1/5 so dau hien co luc nay trong 3 thung la bang nhau. Tinh so dau moi thung