The two cars run from two places 360 kilometers apart at the same time and meet in four hours. How many kilometers per hour does a car run at 35 kilometers per hour? fast

The two cars run from two places 360 kilometers apart at the same time and meet in four hours. How many kilometers per hour does a car run at 35 kilometers per hour? fast

Set B 1 hour x km
4x+4*35=360
4x=360-4*35
4x=220
x=55
A: B 55 kilometers per hour

At the same time, a and B are facing each other. When a is 20 kilometers away from the midpoint, they meet B again
B distance between the two places

Speed difference between two vehicles = 60-40 = 20 km / h
Distance difference between two cars = 20 + 20 = 40 km
Encounter time = 40 △ 20 = 2 hours
Distance between the two places = 2 * (60 + 40) = 200 km

A and B cars are running from AB to ab at the same time. A car travels 40 kilometers per hour, B car travels 60 kilometers per hour, and the two cars are 14.4 kilometers away from the midpoint
Meet. Find the distance between AB and two places

A is faster than B, so a is 14.4km above the midpoint, and B is 14.4km away from the midpoint
14.4x2 = 28.8 (km)
A has more lines per hour than B:
60-40 = 20 (km)
So the time of meeting is:
28.8 △ 20 = 1.44 (hours)
Therefore, the distance between the two places is:
(60 + 40) x1.44 = 144 (km)
The comprehensive formula is as follows:
14.4x2÷(60-40)x(60+40)
=28.8÷20x100
=1.44x100
=144 (km)

The speed of car a is 56 km / h, and that of car B is 48 km / h. The two cars are facing each other. Car B starts 1.5 hours ahead of time and meets at 26 km from the midpoint for the whole journey

Two cases: set the whole process as S
1、 If a reaches half the distance + 26 km, then:
(0.5S-1.5*48)/48=(0.5S+26)/56 S=1320
2、 If a walks half the way to - 26 km, then:
(0.5S-1.5*48+26)/48=(0.5S-26)/56 S=332