The practical problem of seeking the distance A passenger car and a freight car start from a and B at the same time, and run opposite each other for 3 hours. After meeting, the two cars continue to move forward at the original speed. The passenger car reaches B after 2 hours. At this time, the freight car is 110 kilometers away from A. how many kilometers are there between a and B?

The practical problem of seeking the distance A passenger car and a freight car start from a and B at the same time, and run opposite each other for 3 hours. After meeting, the two cars continue to move forward at the original speed. The passenger car reaches B after 2 hours. At this time, the freight car is 110 kilometers away from A. how many kilometers are there between a and B?


Distance difference between passenger car and freight car per hour: 110 (2 + 3) = 22 km
When the bus and the truck meet, the bus runs more than the truck: 22 × 3 = 66 km
The speed of truck is 110-66 = 44 km / h
Bus speed: 44 + 22 = 66 km / h
The distance between a and B is (44 + 66) × 3 = 330km



The speed ratio of car a and car B is 7:6. When the two cars meet, they are 32 kilometers away from the midpoint. How many kilometers are there between city a and city B?


A: the distance between city a and city B is 832 km



Distance application
When the two vehicles meet on the way, the distance of vehicle a is two-thirds of that of vehicle B. after the two vehicles meet, vehicle B continues to drive at the original speed. When vehicle B arrives at a, vehicle a is 30 kilometers away from B. at this time, how many kilometers has vehicle a driven?
In a hurry


The velocity V A / v b = 2 / 3, and the time taken for B to reach the end point is t
V b * t = V A * t + 30
V A * (3 / 2) * t = V A * t + 30
V A * (1 / 2) * t = 30
V A * t = 60
A total of 60 kilometers