A car and a bus are traveling at the same time from two places 280 kilometers apart. After two hours of meeting, it is known that the speed ratio of the car is 4:3

A car and a bus are traveling at the same time from two places 280 kilometers apart. After two hours of meeting, it is known that the speed ratio of the car is 4:3


The ratio of car to bus is 4
280/2*(3/7)=60



Vehicle a travels 40km per hour, and vehicle B travels 60km per hour. The two vehicles are facing each other from a / b. at 4.5 o'clock after meeting, vehicle a arrives at B. calculate the distance between a / b


When we met, car B went
40 × 4.5 = 180 (km)
When did you meet
180 △ 60 = 3 (hours)
What is the distance between a and B
(40 + 60) × 3 = 300 (km)



People's Square No.1, No.2 bus starting station, No.1 bus every three times, No.2 bus every five minutes
When will these two buses leave at 9:00 a.m. at the same time?