1 ô tô chạy từ tỉnh A và dự kiến đến tỉnh B vào lúc 16 giờ.Nếu chạy mỗi giờ 60 km thì ô tô sẽ đến B lúc 15 giờ,nếu chạy mỗi giờ 40 km thì ô tô sẽ đến B lúc 17 giờ.
Tính quãng đường 2 tỉnh AB
Những câu hỏi liên quan
1 ô tô chạy từ tỉnh A nếu chạy mỗi giờ 60 km thì ô tô đến B lúc 15 giờ .Nếu mỗi giờ 40 km thì ô tô đến B lúc 17 giờ.Tính quãng đường AB
1 ô tô chạy từ tỉnh A đến tỉnh B lúc 16 giờ.Nếu mỗi giờ chạy 60km thì ô tô sẽ đến B lúc 15 giờ.Nếu chạy mỗi giờ 40km thì ô tô sẽ đến B lúc 17 giờ.
a,Tính quãng đường AB.
b,Hỏi mỗi giờ ô tô phải chạy bao nhiêu km để đến B lúc 16 giờ?
Các bạn nhớ ghi lời giải đầy đủ nha!
1 ô tô chạy từ tỉnh A và dự kiến đến tỉnh B lúc 16 giờ. Nếu mỗi giờ chạy 60km thì ô tô đến B lúc 15 giờ, nếu chạy 1 giờ 4km thì ô tô sẽ đến B lúc 17 giờ :
a, Hỏi 2 tỉnh AB cách nhau bao nhiêu km?
b, Tính trung bình 1 giờ ô tô phải chạy bao nhiêu km để đến B đung thời gian dự định
Một ô ô chạy từ tỉnh A,nếu chạy mỗi giờ 60km thì ô tô đến B lúc 15 giờ.Nếu chạy mỗi gờ 20 km thì ô tô đến B lúc 17 giờ.Tính quãng đường AB
1 ô tô chạy từ tỉnh A và dự định đến tỉnh B lúc 16 giờ.nếu đi với vận tốc 60km/giờ thì ô tô sẽ đến B lúc 15 gio nếu đi với vận tốc 40 km/giờ thì sẽ đến B lúc 17 giờ
a,tính quãng đường AB
b, tính vận tốc dự định
Ô tô chạy từ tỉnh A. Nếu chạy mỗi giờ 60 km thì ô tô đến B lúc 15 giờ. Nếu chạy mỗi giờ 40 km hì ô tô đến B lúc 17 giờ. Tính quãng đường AB.
Quãng đướng AB nếu mỗi giờ 60km thì đến B lúc 15 giờ là :
60 x 15 = 900 (km)
Quangc đường AB nếu mỗi giờ chạy 40km thì đến B lúc 18 giờ là :
40 x 17 = 680 (km)
Đ/S : .....
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Nếu chạy 60km/h thì QĐ sẽ bằng:
60 x 15 = 900km
Nếu chạy 40km/h thì QĐ sẽ bằng:
40 x 17 = 680km
hok tốt
#~DCT3,14~
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Một ô tô chạy từ tỉnh A đến tỉnh B lúc 16 giờ. Nếu chạy mỗi giờ 60 km thì ô tô đến B lúc 15 giờ. Nếu chạy mỗi giờ 40 km thì ô tô đến B lúc 17 giờ.
Câu a: Hãy tính xem tỉnh A và tỉnh B cách nhau bao nhiêu km?
Câu b: Hãy tính xem trung bình mỗi giờ ô tô phải đi bao nhiêu km để đến B lúc 16 giờ?
Tỉ số giữa 2 vận tốc là : 60:40=3/2
Vì khi đi cùng một quãng đường thì vận tốc tỉ lệ nghịchvới thời gian nên :«Nếu thời gian đi quãng đường AB với vân tốc 60km /h là 2 phần thì là 3 phan nhu the»
Mot phan thời gian nhiều hơn ứng với :
17-15=2(gio)
Vậy với vận tốc 60 km /h ô tô đi từ A đến B mất :
2 2=4(gio)
a,Quãng đường AB dài là :
60 4= 240(km)
Thời gian quy định để chạy từ A đến B là:
4+(16-15)=5(gio)
b, Vận tốc là :
240:5=48(km/h)
Ds:a,240km
b,48 km/h
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một ô tô chạy từ tỉnh A, nếu chạy mỗi giờ 60 km thì ôtô đến B lúc 15 giờ.nếu chạy mỗi giờ 40 km thì ôtô đến B lúc 17gio. tính quãng đường AB
Tỉ số giữa 2 vận tốc là : 60:40==3/2 Vì khi đi cùng một quãng đường thì vận tốc tỉ lệ nghịchvới thời gian nên : «Nếu thời gian đi quãng đường AB với vân tốc 60km /h là 2 phần thì là 3 phan nhu the»
Mot phan thời gian nhiều hơn ứng với :
17-15=2(gio)
Vậy với vận tốc 60 km /h ô tô đi từ A đến B mất :
2 + 2=4(gio)
Quãng đường AB dài là :
60 4= 240(km)
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Đúng đó đáp số là 240
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Một ô tô chạy từ tỉnh A và đến tỉnh B lúc 16 giờ. Nếu chạy mỗi giờ 60 km thì ô to sẽ đến B lúc 15 giờ, nếu chạy mỗi giờ 40 km thì ô tô sẽ đến B lúc 17 giờ. Hỏi:
a, Hãy tính xem hai tỉnh A và B cách nhau bao nhiêu km?
b, Hãy tính xem trung bình mỗi giờ ô tô phải chạy bao nhiêu km để đến B đúng lúc 16 giờ?
Ai nhanh mình tick cho!!!!
