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lunmapnguyen2001
2 năm trước
Một đơn vị bộ đội có 10 người, ăn trong 10 ngày hết 100 kg gạo. Hỏi: a) Nếu đơn vị bộ đội đó có 20 người thì họ ăn trong bao nhiêu ngày hết 200 kg gạo? b) Nếu đơn vị bộ đội đó chỉ có 5 người thì họ ăn trong 20 ngày hết bao nhiêu kg gạo? (mức ăn của mỗi người giống nhau)
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