12,5kg= kg g
Trung bình mỗi con nặng là:
12,5 : 5 = 2,5 ( kg )
Đáp số: 2,5 kg.
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cửa hàng nhập về thùng muối cân được 15,7kg.cửa hàng đã bán 12,5kg muối thi còn lại 2,8kg muối.hỏi chiếc thùng rỗng nặng bao nhiêu kg ?
Thùng rõng cân nặng là;
15,7-12,5-2,8=0,4(kg)
Đáp số: 0,4 kg
tk nhé@@@@@@@@@@@@@@@@@@@
thùng rỗng đó nặng:
15,7-12,5-2,8=0,4(kg)
đ/s..
0o0k nha0o0
Làm bừa nhé:
Bài giải:
Thùng rỗng cân nặng là:
15,7- 12,5 - 2,8 = 0,4(kg)
Đáp số:0,4 kg.
^ ^
( ( ) )
# #
Chúc học tốt nhé ad.Ko chắc đúng đâu.
Cửa hàng nhập về thùng muối 15,7kg. Cửa hàng đã bán 12,5kg muối thì còn lại 2,8kg muối.Hỏi chiếc thùng rỗng nặng bao nhiêu kg
số kg cân nặng thùng muối và muối trong thùng là : 15,7 -12,5=5,2kg
thùng rỗng nặng :5,2-2,8=2,4kg
1 phép tính,ko cần 2 phép tính.Rất nhanh nè
thùng rỗng cân nặng
15,7-12,5-2,8=0,4(kg)
đáp số : 0,4 kg
cua hang nhap ve thung muoi can duoc 15,7kg . cua hang da ban 12,5kg muoi thi con lai 2,8kg muoi . hoi chiec thung rong nang bao nhieu kg ?
Số kg muối trong thùng là:12,5+2,8=15,3 kg
Thùng rỗng nặng số kg là: 15,7-15,3=0,4kg
có 4 tải gạo,bao thứ hai nặng gấp 2 lần bao thứ nhất,bao thứ ba nặng hơn bao thứ hai 12,5kg gạo,bao thứ tư ít hơn bao thứ ba 6,3kg gạo.hỏi bao thứ ba nặng bao nhiêu kg?
cửa hàng có số gạo tẻ nhiều hơn số gạo nếp là 23,5kg. sau khi người ta bán 7,5kg gạo nếp thì còn lại 12,5kg gạo nếp . hỏi lúc đầu cửa hàng có tất cả bao nhiêu kg gạo?
Số kg gạo nếp là: \(12,5+7,5=20\) (kg)
Số kg gạo tẻ là: \(20+23,5=43,5\) (kg)
Cửa hàng có số kg gạo là: \(20+43,5=63,5\) (kg)
20 đâu ra zị bn
Cửa hàng có số gạo tẻ nhiều hơn số gạo nếp 67,5kg .Sau khi người ta bán mỗi loại 12,5kg gạo thì còn lại số gạo nếp bằng 4/9 số gạo tẻ. Hỏi lúc đầu cửa hàng có tất cả bao nhiêu kg gạo
Hiệu số gạo giữa hai loại au khi bán là:
67,5 - 12,5 + 12,5 = 67,5 (kg)
Hiệu số phần bằng nhau là
9 - 4 = 5 (phần)
Số gao nếp lúc đauà là:
67,5 : 5 x 4 + 12,5 = 26(kg)
Số gao tẻ lúc đauà là:
67,5 - 26 = 41,5 (kg)
sau khi bán 128 kg thì hiệu không đôỉ ,vẫn là 67.5
ta có sơ đồ:
số gạo nếp: |_|_|_|_|
số gạo tẻ:|_||_||_||_||_||_||_||_||_| hiệu:67,5
hiệu số phần bằng nhau là:
9-4=5(phần)
số gạo tẻ là:
67,5:5x9+12,5=41,5(kg)
số gạo nếp là:
67,5-41,5=26(kg)
đáp số:số gạo nếp:26 kg số gạo tẻ: 41,5 kg
k cho mình nha
hiệu số phâng
Hiệu số gạo giữa hai loại au khi bán là:
67,5 - 12,5 + 12,5 = 67,5 (kg)
Hiệu số phần bằng nhau là
9 - 4 = 5 (phần)
Số gao nếp lúc đauà là:
67,5 : 5 x 4 + 12,5 = 26(kg)
Số gao tẻ lúc đauà là:
67,5 - 26 = 41,5 (kg)
Mọt thùng có 12,5kg gạo.Người đầu bếp muốn lấy ra 3 kg gạo chỉ bằng mọt chiếc cân hai đĩa và một quả cân 1kg.Hỏi người đầu bếp phải cân thế nào để sau 2 lần cân lấy được số gạo đó ?
+ Đặt quả cân lên 1 bên đĩa cân, đĩa cân còn lại cho gạo vào đến khi cân thăng bănghf thì bên đĩa cân chứa gạo có 1 kg
+ Đặt quả cân sang đĩa cân chứa 1 kg gạo cho gạo vào đĩa cân bêb kia cho đến khi cân thăng bằng thì bêb đĩa cân không chứa quả cân có 2 kg gạo
+ Dồn gạo ở 2 bên đĩa cân vào 1 túi ta có 3 kg gạo
bài 1:
1 cửa hàng có một số gạo tẻ nhiều hơn gạo nếp là 23,5kg sau khi người ta bán 7,5 kg gạo nếp thì còn lai 12,5kg gạo nếp hỏi lúc đầu có tất cả bao nhiêu kg gạo ?
làm hộ mình nha