A and B walk from a and B at the same time. A walks 5 kilometers per hour. When they meet, B walks another 10 kilometers to a, and a walks another 1.6 hours to B B how many kilometers per hour?

A and B walk from a and B at the same time. A walks 5 kilometers per hour. When they meet, B walks another 10 kilometers to a, and a walks another 1.6 hours to B B how many kilometers per hour?


The distance b walked after meeting is the distance a walked before meeting. It can be seen that a walked 10 kilometers, 2 hours before meeting
The distance that a walks after meeting is the distance that B walks before meeting. It can be seen that B walks 1.6 * 5 = 8km before meeting. It takes two hours from departure to meeting a and B, so B's speed is 4000 meters per hour



The first time they meet is 10km away from point a, and then they continue to move forward. After a arrives at place B, they return to the same way immediately, and after B arrives at place a, they return to the same way immediately. The second time they meet is 3km away from point B, and the distance between a and B is calculated


Suppose that the distance between a and B is x km, then x + 3 = 3 × 10, and the solution is x = 27. The distance between a and B is 27 km



Party A and Party B set out from both places at the same time. Party A walks 100 meters every minute. After they meet, Party B walks another 1000 meters to reach place a, and Party A walks another 12 minutes
A walks another 12 minutes to B. How many meters is the distance between a and B?


B walked another 1000 meters to reach A. that is to say, a walked 1000 meters before meeting, and a walked 100 meters per minute,
So, it took 1000 / 100 = 10 minutes to meet
From a to B, a takes 10 + 12 = 22 minutes,
Distance between two places: 22 * 100 = 2200m