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 .

co hai thung chua dau , thung nho it hon thung to la 4,5l dau .sau khi lay ra 3,75l dau tu thung nho thi thung nay con lai 19,5l dau . hoi luc dau ca hai thung co bao nhieu lit dau

hai thung thu nhat chua 40 lit dau, neu lay 5 lit dau tu thung thu nhat sang thung thu hai thi so dau o hai thung bang nhau. hoi so dau o thung thu nhat chua bao nhieu lit dau

2 thung dung dau thung to VA nho so dau ca 2 thung chua la 30l neu lay 2 thung to VA 3 thung nho thi tong so lit bang lit dau cua 2 thung to bang tong so lit dau cua 3 thung nho hoi moi thung to chua bao nhieu lit dau 

Co 2 thung dau thug thu nhat hon thung thu 2 la 12 lit biet rằng neu lay bot o thung thu 2 4 lit thi so dau con lai cua thung thu 2 bang 2/5 so dau con lai cua thung thu nhat. Hoi moi thung co bao nhieu lit dau

mot thung dung dau sau khi lay di 21

lit dau thi so dau con lai bang 8/15 so dau dung trongthung. hoi thung daung bao nhieu lit dau

moi thung dau chua so dau nhu nhau neu lay 5 thung va 15l thi duoc 240l dau hoi neu lay 9 thung va 20l thi duoc bao nhieu lit dau

co 2 thung chua tong cong 327 lit dau neu lay 30 lit o thung thu nhat do sang thung thu 2 thi thung thu 2 nhieu hon thung nhu nhat 13 lit . hoi luc dau moi thung co bao nhieu lit dau

co 5 thung dau,moi thung chua 1545l dau nguoi ta lay ra 2850l dau tu cac thung do.hoi con lai bao nhieu lit dau?