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2022-05-25 10:11:56
Thời gian dự định đi từ A đến B là :
13 giờ - 8 giờ 30 phút = 4 giờ 30 phút = 4,5 giờ Quãng đường AB dài là : 60 x 4,5 = 270 (km) Khoảng thời gian từ 8 giờ 30 phút đến 11 giờ là : 11 giờ - 8 giờ 30 phút = 2 giờ 30 phút = 2,5 giờ Quãng đường xe đó phải đi sau khi sửa xe là : 270 - 60 x 2,5 = 120 (km)
2022-04-07 20:32:45