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7/10 tạ = 0,7 tạ
4/5 tạ =0,8 tạ
2 tạ 50 kg = 2,05 tạ
Xe đó chở được số tạ ngô là :
2,05 - 0,7 - 0,8 = 0,55 (tạ)
Đáp số : 0,55 tạ
Mình sửa lại chút nha !
Đổi : 7/10 tạ = 0,7 tạ
4/5 tạ = 0,8 tạ
2 tạ 50 kg = 2,5 tạ
Xe đó chở đc số tạ ngô là :
2,5 - (0,7+0,8) = 1 (tạ)
Đáp số : 1 tạ
Sory bạn,Mình làm lộn ở chỗ đổi 2 tạ 50 kg nha !!!
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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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
cả 2 xe chở số tấn gạo là ( 1,25 + 0,75 + 0,05 + 0,25 ) = 2,3 tấn gạo
Đổi: 2 tạ 50 kg = 2.5 tạ
Số gạo nếp xe chở là: 7/10 = 0.7 (tạ)
Số gạo tẻ xe chở là: 4/5 = 0.8 (tạ)
=> Số tạ ngô xe chở là: 2.5 - 0.8 - 0.7 = 1 (tạ)
nếu hỏi xe đó chở bao nhiêu ki-lô-gam thì trả lời như sau:
đổi 3 tấn 500 kg = 3500kg
xe đó chở 3500 kg
nếu hỏi xe đó chở bao nhiêu ki-lô-gam ngô thì làm như sau:
đổi 3 tấn 500 kg = 3500 kg
1,2 tấn = 1200 kg
1/2 tấn = 500 kg
xe đó chở số ki-lô-gam ngô là:
3500 - 1200 - 500 = 1800 (kg)
đs...