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huy2302
2 năm trước
Tổng số tuổi của Bố, Mẹ và hai con là 87. Bố hơn Mẹ 3 tuổi. Số tuổi của người anh gấp đôi số tuổi của người em. Số tuổi của người em nhân với chính số đó thì bằng số tuổi của Bố. Tính số tuổi của mỗi người trong gia đình này.
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