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A passenger train runs from place a to place B, and a freight train runs from place B to place A. when the freight car runs 180 km, the passenger train runs four seventh of the whole journey When the bus arrives at B, the truck runs seven eighths of the whole journey. How many kilometers are there between a and B?
A passenger train goes from place a to place B, and a freight train goes from place B to place A. when the freight train runs 180 km, the passenger train runs four seventh of the whole journey. When the passenger train reaches place B, the freight train runs seven eighth of the whole journey
The distance between a and B is x km
Speed ratio of two cars = 180: 4x / 7 = 7x / 8: X
180x = x² /2
x = 180 x 2 = 360 km
The two passenger and freight cars are going from place a to place B at the same time. When the passenger car runs three seventh of the whole journey, the freight car runs 24km,
When the bus arrives at B, the truck is 15km away from B. how far is the distance between B and B?
The distance between the two places is 71 km. X: 1 = 24:3 / 7. X = 56.56 + 15 = 71
A bus goes from place a to place B, and a truck goes from place B to place A. when the truck runs 180 km, the bus runs four seventh of the whole journey. When the bus arrives at place B, the truck runs seven eighth of the whole journey. How many km is the distance between the two places
The speed ratio of passenger cars to freight cars is 8:7
The distance between a and B is 180 × 8 / 7 △ 4 / 7 = 360 km
A passenger car and a freight car run in the same direction at the same time. The train runs 64 kilometers per hour, and the passenger car runs 80 kilometers per hour. A few hours later, the distance between the two trains is 432 kilometers
There is one more word in the above question?
The distance between the two trains is 432km after X hours
64x+80x=432
144x=432
x=3
So three hours later, the two trains were 432 kilometers apart
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