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Vì xe thứ hai chở ít hơn xe thứ nhất 3 bao gạo thì xe thứ hai chở ít hơn xe thứ nhất 150kg gạo, nên 3 bao gạo sẽ nặng 150kg.
1 bao gạo nặng số kg là: 150 : 3 = 50 ﴾kg﴿
Xe thứ nhất chở số kg gạo là: 50 x 60 = 3000 ﴾kg﴿
Xe thứ hai chở số kg gạo là: 3000 ‐ 150 = 2850 ﴾kg﴿
Đáp số: Xe thứ nhất: 3000kg; Xe thứ hai: 2850kg
Xe thứ nhất chở nhiều hơn xe thứ hai số bao gạo là :
60 - 57 = 3 ( bao )
Mỗi bao gạo nặng :
150 : 3 = 50 ( kg )
Xe thứ nhất chở số gạo là :
50 x 60 = 3000 ( kg )
Xe thứ hai chở số kg gạo là :
3000 - 150 = 2850 ( kg )
Đáp số : xe 1 : 3000 kg
xe 2 : 2850 kg
Vì xe thứ hai chở ít hơn xe thứ nhất 3 bao gạo thì xe thứ hai chở ít hơn xe thứ nhất 150kg gạo, nên 3 bao gạo sẽ nặng 150kg.
1 bao gạo nặng số kg là:
150 : 3 = 50 (kg)
Xe thứ nhất chở số kg gạo là:
50 x 60 = 3000 (kg)
Xe thứ hai chở số kg gạo là:
3000 - 150 = 2850 (kg)
Đáp số: Xe thứ nhất: 3000kg; Xe thứ hai: 2850kg.
Vì xe thứ hai chở ít hơn xe thứ nhất 3 bao gạo thì xe thứ hai chở ít hơn xe thứ nhất 150kg gạo, nên 3 bao gạo sẽ nặng 150kg.
1 bao gạo nặng số kg là:
150 : 3 = 50 (kg)
Xe thứ nhất chở số kg gạo là:
50 x 60 = 3000 (kg)
Xe thứ hai chở số kg gạo là:
3000 - 150 = 2850 (kg)
Đáp số: Xe thứ nhất: 3000kg; Xe thứ hai: 2850kg.
Đáp án:
Giải thích các bước giải:
Trung bình mỗi xe chở được:
( 4,3 + 4,5 + 3,8 ) : 3 =4,2 ( tấn gạo)
4,2 tấn = 42 tạ
Đáp số : 4,2 tấn gạo
42 tạ 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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Đáp án:
Giải thích các bước giải:
BÀI 14 :
180 bao cân nặng số kg là
180×50=9000 ( kg )
nếu mỗi bao gạo cân nặng 45 kg thì xe đó chở được số bao là
9000÷45=200 ( bao )
bài 15 :
6 ngày gấp 3 ngày số lần là
6÷3=2 ( lần )
3 ngày cần phải thêm số người là
12×2-12=12 ( người )
2072m²=0,2072ha
Trung bình mỗi xe chở được số tạ gạo, tấn gạo là :
( 4,3 + 4,5 + 3,8 ) : 3 = 4,2 ( tấn )=> 0,42 tạ
HT
SAI THÌ THÔNG CẢM NHÉ !
Đổi: \(4\)tấn \(200kg=4,2\)tấn; \(4\)tấn \(300kg=4,3\)tấn; \(3\)tấn \(700kg=3,7\)tấn.
Cả ba xe chở số gạo là:
\(4,2\times3=12,6\)(tấn)
Xe thứ ba chở số tấn gạo là:
\(12,6-3,7-4,3=4,6\)(tấn)
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
Xe thứ nhất chở số kg gạo là:
5x80=400(kg)
Xe thứ hai chở số kg gạo là:
3x96=288(kg)
Trung bình mỗi xe chở số kg gạo là:
(400+288):2=344(kg)
b,Cả hai xe chở số bao gạo la:
5+3=8(bao)
Trung bình mỗi bao gạo nặng số kg là:
688:8=86(kg)