Mathematics, 24.07.2021 03:20 outlaw93

Một người đi từ nhà đến cơ quan phải trải qua 3 ngã tư, xác định người sáng tạo đèn đỏ ở các ngã tư tương ứng 0,2; 0,4; 0,6. Hỏi trung bình thời gian phải ngừng trên đường là bao nhiêu, biết rằng khi gặp đèn đỏ, người đó phải nghỉ khoảng 3 phút

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Một người đi từ nhà đến cơ quan phải trải qua 3 ngã tư, xác định người sáng tạo đèn đỏ ở các ngã tư...

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