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honhu2303
2 năm trước
Khoảng từ 50 đến 70 học sinh tham gia lao động trồng cỏ sân trường. Tính số học sinh đó, biết rằng nếu xếp thành các nhóm đều nhau: mỗi nhóm 4 học sinh, 5 học sinh, 6 học sinh thì đều thừa 3 học sinh. Tính số học sinh tham gia lao động. Nhanh mn ưi
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