Mathematics, 20.06.2021 18:20 tdahna0403

Trong một thư viện có 2 máy in A và B để in 100 trang giấy thì máy A in nhanh hơn máy B là một phút khi cùng in, thì trong 1 phút cả 2 máy in được tổng cộng 45 trang giấy. Tính thời gian để máy A in được 100 trang giấy

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Trong một thư viện có 2 máy in A và B để in 100 trang giấy thì máy A in nhanh hơn máy B là một phút...

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