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A truck and a motorcycle leave from a and B at the same time. They meet for the first time at a distance of 60 kilometers from A. then, they continue to move forward When the truck arrived at land B and the motorcycle arrived at land a, they returned immediately. On the way, the two cars met for the second time at a distance of 30 kilometers from land B. how far is the distance between the two places?
If the total distance is x, the total distance taken by two vehicles when they meet twice is three times that of a and B. for the first time, the truck takes 60 km and the motorcycle takes X-60 km. For the second time, the truck takes x + 30 km. Then the following equation holds
(X+30)+(X-60)*3=3X
That is, x + 30 + 3x-180 = 3x
4X-150=3X
X=150
A truck and a motorcycle leave from a and B at the same time. The two vehicles meet for the first time at a distance of 60 km from A. then the two vehicles move on,
When the truck arrives at B, the motorcycle immediately returns to A. on the way, the two vehicles meet for the second time 30 meters away from B. how many kilometers are there between a and B?
Road: when two cars meet, the time taken is equal, which is the condition of the equation. But the speed of two cars is fixed, so we can set AB as X km, then the speed ratio of truck and motorcycle is 60 / (X-60) when we first meet; when we second meet, the speed ratio of two cars is: (x + 30) / (2x-30), and these two expressions are equal
A truck and a motorcycle drive from a and B at the same time. The two vehicles meet for the first time 90 km away from A. after meeting, the two vehicles continue to move forward,
Trucks arrive at B, motorcycles arrive at a immediately return, the two cars meet on the way 50 kilometers away from B. how many kilometers is the distance between a and B?
How do you understand the "3-way" when the two cars meet for the second time? Please analyze it in detail. Thank you
90×3-50
=270-50
=220 km
A truck and a motorcycle leave from a and B at the same time. The two vehicles meet for the first time at a distance of 60 km from a on the way. Then the two vehicles continue to move forward. When the truck arrives at B and the motorcycle arrives at a, they both return immediately. The two vehicles meet for the second time at a distance of 30 km from B on the way. What is the distance between a and B?
The total distance taken by two cars when they meet twice is three times that of a and B. suppose the total distance is x, then the equation is: (x + 30) + (X-60) × 3 = 3x4x-150 = 3x, x = 150; a: the distance between a and B is 150 km
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