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Nguyen Do Nhat An
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2023-09-26 21:16:20
chịu nhé
2023-09-26 21:16:13
nhầm sorry
2023-09-26 21:15:51
Tổng vận tốc của hai người đi bộ là
4+5=9 (km/h)
Thời gian để họ gặp nhau là
18 : 9= 2(giờ)
Sau 2 giờ người đi từ A đi được số ki-lô-mét là:
4x2= 8 (km)
Khi gặp nhau người đi từ A cách B số km là
10-8=10 (km)
Vậy sau 2 giờ hai người gặp nhau. Khi gặp nhau người đi từ A cách B số 10 km
2023-09-26 21:08:43
2023-09-26 21:07:58
154 x 2 + 115 + 250 = 673
2023-09-26 09:05:19
2023-09-26 09:05:19
2023-01-01 19:52:37
2022-08-22 20:00:33
9876 + 102=9978
2022-08-20 17:20:17