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25 tháng 10 2018

Một xe tải bé chở được số gạo là:

       50 x 16 = 800 (kg)

Một xe tải lớn chở được số gạo là:

       70 x 90 = 6300 (kg)

Xe tải lớn chở được nhiều hơn xe tải bé số gạo là:

       6300 – 800 = 5500 (kg) = 55 tạ

       Đáp số: 55 tạ gạo

19 tháng 6 2016

Bài giải :

Xe tải bé chở được tổng số gạo là : 

16 x 50 = 800 ( kg )

            = 8 ( tạ )

Xe tải lớn chở được tổng số gạo là :

90 x 70 = 6300 ( kg )

            = 63 ( tạ )

Xe tải lớn chở được nhiều hơn xe tải bé số gạo là :

63 - 8 = 55 ( tạ )

Đáp số : 55 tạ .

19 tháng 6 2016

xe bé chở được là:16x50=800(kg)

xe lớn chở được là:90x70=6300(kg)

đổi:800kg=8 tạ;6300kg=63 tạ

xe lớn chở nhiều hơn xe bé là:63-8=55(tạ)

                                                   đáp số:55 tạ

14 tháng 10 2021

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

14 tháng 10 2021

Xe đó chở \(30\times40+40\times20=1200+800=2000\left(kg.gạo\right)=2\left(tấn.gạo\right)\)

7 tháng 9 2021

Số gạo tẻ xe đó chở là:

   40 x 30 = 1200 (kg)

Số gạo nếp xe đó chở là:

   20 x 40 = 800 (kg)

Số gạo xe đó chở là:

   1200 + 800 = 2000 (kg)

                      Đ/S: 2000 kg

7 tháng 9 2021

Số kg gạo nếp là: 

40 x 20 = 800 (kg)

Số kg gạo tẻ là :

30 x 40 = 1200 (kg)

Xe chở tổng số tấn gạo là: 

1200 + 800 = 2000 (kg) = 2 (tấn)

26 tháng 5 2015

Số gạo tẻ cân nặng :

30 x 40 = 1200 ( kg )

Số gạo nếp cân nặng  :

40 x 20 = 800 ( kg )

Xe độ cho hàng nặng :

1200 + 800 = 2000 ( kg ) = 2 tấn

                  Đáp số : 2 tấn

26 tháng 5 2015

                                               Bài giải 

Xe đó chở số ki lô gam gạo tẻ là : 30 x 40 = 1200 ( kg )

Xe đó chở số ki lô gam gạo nếp là : 20 x 40 = 800 ( kg )

Xe đó chở số tấn gạo là : 1200 + 800 = 2000 ( kg )

                                 Đổi : 2000 kg = 2 tấn 

                                                     Đáp số : 2 tấn 

25 tháng 5 2015

 30 bao gạo tẻ cân nặng 30 x 40 =1200 (kg)

40 bao gạo nếp cân nặng 40 x 20 = 800 (kg)

Khối lượng gạo xe đó chở là 1200 + 800 = 2000 (kg)

Đổi 2000kg = 2 tấn

25 tháng 5 2015

Bài giải

Khối lượng gạo tẻ xe đó chở được là :

40 x 30 = 1200 kg gạo = 1,2 tấn gạo

Khối lượng gạo nếp xe đó chở được là :

20 x 40 = 800 kg gạo = 0,8 tấn gạo

Khối lượng gạo xe đó chở được tất cả là :

1,2 + 0,8 = 2 tấn gạo

Đáp số: 2 tấn gạo.

22 tháng 10 2017

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

22 tháng 10 2017

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.

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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