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6 tháng 10 2017

0,05 tấn = 50 kg 

0,04 tấn = 40 kg 

cân nặng 40 bao gạo là :

50 x 40 = 2000 ( kg )

cân nặng 50 bao ngô là :

40 x 50 = 2000 ( kg )

cân nặng 40 bao gạo và 50 bao ngô là :

2000 + 2000 = 4000 ( kg )

4000 kg = 4 tấn 

ĐS:...

6 tháng 10 2017

Bài giải:

Số tấn gạo có là :

40*0,05=2 ( tấn)

Số tấn ngô có là :

50*0,04=2 ( tấn)

Tổng số gạo và ngô có là:

2+2=4 (tấn)

Số kg gạo và ngô có là:

4 tấn = 4000 kg

Đ/s: 4 tấn

        4000 kg

7 tháng 11 2015

Số ki-lô-gam của 20 bao ngô là:

40x25=1000(kg)=1 tấn

Số ki-lô-gam gạo là:

50x20=1000(kg)=1 tấn

Xe đó chở số tấn gạo và ngô là:

1+1=2(tấn)

Đáp số:2 tấn

 

6 tháng 11 2016

đáp số là 2 tấn mình thử rồi 

7 tháng 6 2021

20 bao gạo nặng là:

 50x20= 1000(kg)

25 bao ngô nặng là:

 40x 25= 1000( kg)

Xe đó chở số gạo là:

1000+1000= 2000(kg)

 Đổi: 2000kg= 2 tấn

    Đáp số: 2 tấn

Bài này ko phải lớp 5 đâu mà là của lớp 3 đấy

19 tháng 11 2016

1﴿chiều rộng là: 78,2‐3,8=74,4

HCN=﴾78,2+74,4﴿*2=305,2

2﴿1 tấn gạo và 1 tấn ngô

3﴿2 số đó là: 27; 9,36

17 tháng 11 2016

1)chiều rộng là: 78,2-3,8=74,4

HCN=(78,2+74,4)*2=305,2

2)1 tấn gạo và 1 tấn ngô

3)2 số đó là: 27; 9,36

9 tháng 11 2021

30 bao ngô nặng : 30 x 60 =1800 (kg)

25 bao gạo nặng: 25 x 50=1250 (kg)

xe đó chở được : 1800+1250=3050kg = 3,05( tấn)

2 tháng 4 2015

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

12 tháng 11 2016

40 bao gạo  cân nặng là

0,05x40=2 tấn

50 bao ngô cân nặng là

0,04x50=2 tấn

 cả 2 bao cân nặng là

2+2=4 tấn

đổi 4 tấn=4000 kg

đáp số :a]4 tấn

b]4000 kg

chúc bạn học giỏi hơn

tk mình nha

19 tháng 11 2020

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

8 tháng 10 2022

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26 tháng 12 2015

chtt đó

câu của thuynguh

9 tháng 1 2022

đổi 1,2 tấn =1200kg

1 bao nặng là :

1200:24=50(kg)

12 bao nặng là :

50x12=600(kg)

nếu thêm 12 bao nữa thì nặng số tấn là:

1200+600=1800(kg)=1,8 (tấn)

                                đáp số : 1,8 tấn