mỗi bao gạo tẻ cân nặng 50 kg , mỗi bao gạo nếp cân nặng 40 kg . người ta dự định chuyển 240 bao gạo tẻ và 240 bao gạo nếp bằng 6 thuyền . hỏi trung bình mỗi thuyền chở được bao nhiêu tạ gạo
mỗi bao gạo tẻ cân nặng 50 kg , mỗi bao gạo nếp cân nặng 40 kg . người ta dự định chuyển 240 bao gạo tẻ và 240 bao gạo nếp bằng 6 thuyền . hỏi trung bình mỗi thuyền chở được bao nhiêu tạ gạo ?
số kg gạo tẻ là
50.240=12000kg
số kg gạo nếp là
40.240=9600kg
TB 1 thuyền chở là
(*12000+9600):6=3600kg
Một xe tải chở 30 bao gạo tẻ và 40 bao gạo nếp. Mỗi bao gạo tẻ cân nặng 40 kg, mỗi bao gạo nếp cân nặng 20 kg. Hỏi xe đó chở bao nhiêu tấn gạo ?
Khối lượng của 30 bao gạo tẻ là:
30 x 40 = 1200 ( kg )
Khối lượng của 40 bao gạo nếp là:
40 x 20 = 800 ( kg )
Đổi : 1200 kg = 1,2 tấn
800 kg = 0,8 tấn
Xe đó chở được số tấn gạo là:
1,2 + 0,8 = 2 ( tấn )
Đáp số : 2 tấn gạo
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Xe đó chở số tấn gạo là:
(30×40)+(40×20)=2000(kg)=2(tấn)
Đáp số: 2 tấn
Mỗi bao gạo cân nặng 50kg. Người ta dự định chuyển 240 bao gạo bằng 6 thuyền. Hỏi trung bình mỗi thuyền chở mấy tấn gạo?
A. 2 tấn
B. 3 tấn
C. 4 tấn
D. 5 tấn
mỗi bao gạo tẻ cân nặng 50 kg mỗi bao gạo nếp cân nặng 25 kg mỗi xe ô tô chở 20 bao gạo tẻ và 40 bao gạo nếp. hỏi xe đó cho tất cả bao nhiêu tấn gạo ?
20 bao gạo tẻ cân nặng là
50x20=1000 kg
40 bao gạo nếp cân nặng là
25x40=1000 kg
xe đó chở số tấn là
1000+1000=2000 kg
đáp số : 2000 kg
chúc bạn học giỏi hơn
tk mình nha
xe đó chở bao gaọ tẻ hết số tấn là:50 * 20=1000(kg)=1 tấn
xe đó chở số tấn gạo nếp là:25*40=1000(kg)=1 tấn
xe đó chở tất cả số tấn gạo là:1+1=2(tấn)
Đáp số:2 tấn
Một xe tải chở 30 bao gạo tẻ và 40 bao bao gạo nếp .Mỗi bao gạo tẻ cân nặng 40 kg , mỗi bao gạo nếp cân nặng 20 kg . Hỏi xe đó chở bao nhiêu tấn gạo ?
Số kg gạo tẻ là:
30.40=1200 (kg)
Số gạo nếp là:
40.20=800 (kg)
Xe chở số tấn gạo là:
800+1200=2000(kg)
2000 kg=2 tấn
Đáp số : 2 tấn
1, Một xe tải chở 30 bao gạo tẻ và 40 bao gạo nếp . Mỗi bao gạo tẻ cân nặng 40 kg , mỗi bao gạo nếp cân nặng 20 kg . Hỏi xe đó chở bao nhiêu tấn gạo ?
2, Cửa hàng có số gạo tẻ nhiều hơn số gạo nếp 1 tạ 50 kg . Sau khi bán đi 25 kg mỗi loại thì có lại lượng gạo nếp bằng 2/5 lượng gạo tẻ. Hỏi lúc đầu cửa hàng có bao nhiêu kg mỗi loại ?
3,Tính bằng cách thuận tiện :
a, 2/7 + 17/24 + 5/7
b, 13/5 * 6/7 + 6/7 * 5/13
MONG MỌI NGƯỜI GIẢI GIÚP MÌNH NHA ^^
mình chỉ biết câu 1 thôi :
lấy số bao gạo tẻ nhân với cân nặng của bao là 30 x 40 = 1200 kg.
sau đó ta cũng làm như cách kia là : 40 x 20 = 800 kg.
ta cộng 2 tích lại bằng : 1200 + 800 = 2000 kg
1.
30 bao gạo tẻ nặng số ki-lô-gam là :
40 x 30 = 1200 (kg)
40 bao gạo nếp nặng số ki-lô-gam là :
20 x 40 = 800 (kg)
Xe đó chở số gạo là :
1200 + 800 = 2000 (kg)
2000kg = 2 tấn
Đáp số : 2 tấn
2.
1 tạ 50kg = 150 kg
Sau khi bán đi 25kg mỗi loại thì hiệu số gạo vẫn không đổi .
Lúc đầu cửa hàng có số gạo tẻ là :
150 : (5-2) x 5 = 250 (kg)
Lúc đầu cửa hàng có số gạo nếp là :
250 - 150 = 100 (kg)
Đáp số : 250kg gạo tẻ
100kg gạo nếp
3.
a, \(\frac{41}{24}\)
b, \(\frac{194}{65}\)
Bài 3 mình ko chắc lắm.
mốt làm ơn cho đề ít giùm cái T~T
1 : 30 bao gạo tẻ cân nặng :
40 x 30 = 1200 ( kg )
40 bao gạo nếp cân nặng :
20 x 40 = 800 ( kg )
30 bao gạo tẻ và 40 bao gạo nếp cân nặng ;
1200 + 800 = 2000 9 kg )
2000 kg = 2 tấn
ĐS:...
một xe tải chở đcj 20 bao gạo nếp và 40 bao gạo tẻ , mỗi bao gạo cân nặng 40 kg , mỗi bao gạo nếp cân nặng 45kg . hỏi xe đó cân nặng bao nhiêu kg
khối lượng của xe đó là 2600kg nha
nhớ nhé
20 bao gao nep can nang so kg la:
20x45=900(kg)
20 bao gao te can nang so kg la:
20x40=800(kg)
Xe do can nang so kg la:
900+800=1700(kg)
D/S:1700 kg
Xe đó chở được tất cả :
( 45 . 20 ) + ( 40 . 40 ) = 2500 ( kg )
đ/s : ...
Nếu bạn không làm gộp bạn có thể tách ra làm 3 lời giải
Một xe tải chở 30 bao gạo tẻ và 40 bao gạo nếp.Mỗi bao gạo tẻ cân nặng 40 kg , mỗi bao gạo nếp cân nặng 20 kg . Hỏi xe đó chở bao nhiêu tấn gạo ?
một kho gạo có 32 bao gạo tẻ và 59 bao gạo nếp, mỗi bao gạo tẻ cân nặng 50 kg và mỗi bao gạo nếp cân nặng 45 kg. hỏi kho đó có bao nhiêu tấn gạo ?
Số kg gạo tẻ là:
50 x 32 = 1600 (kg)
Số kg gạo nếp là:
59 x 45 = 2655 (kg)
Vậy có tổng cộng:
1600 + 2655 = 4255(kg) = 4,255 tấn
ĐS: 4,255 tấn