A and B two cars from East and west at the same time, the distance ratio is 5:3 when they meet. At this time, B car is 80 kilometers away from the center of the two places How many kilometers are there between the East and the west?
Let a pass through 5x and B pass through 3x
The whole process is 8x
8X/2-3X=80
X=80
Whole course = 8 * 80 = 640
A: the distance between the East and the west is 640 km
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