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Nguyễn Thị Mai Liên
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0
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0
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0
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0
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0
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0
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0
2023-10-08 21:55:57
Tóm tắt:
16 người: xong trong 3 ngày
8 người: xong trong ? ngày
Lời giải:
Số ngày 1 người làm xong công việc:
(ngày)
Số ngày 8 người làm xong công việc:
(ngày)
Đáp số: ngày