It's 360 kilometers from a to B. a car starts from a at 13:30 and arrives at B at 16:30. How many kilometers does the car travel per hour?

It's 360 kilometers from a to B. a car starts from a at 13:30 and arrives at B at 16:30. How many kilometers does the car travel per hour?

16:30-13:30 = 3:360 △ 3 = 120 (km / h) a: this car travels 120 km per hour on average

A helicopter flies between cities a and B. It takes 4 hours to fly along the wind and 5 hours to fly against the wind. The wind speed is 30 km / h
distance

Let the distance between AB and ab be x km, and the aircraft speed (when there is no wind) be y km / h
4（y+30）=5（y-30）.①
x=4（y+30）.②
By solving equation 1, y = 270
Substituting y = 270 into 2, we get x = 4x (270 + 30) = 1200 km
The distance between AB and ab is 1200 km, and the aircraft speed (when there is no wind) is 270 km / h

When an aircraft flies between two cities, it takes 5.5h for downwind and 6h for upwind. The speed of the aircraft in the calm wind is 230km / h. calculate the wind speed and distance between the two cities

Let the wind speed be x and the distance be y
5.5*(230+X)=Y
6*(230-X)=Y
Value x = 10, y = 1320km

A helicopter flies between cities a and B. It takes 4 hours to fly along the wind and 5 hours to fly against the wind. The wind speed is 30 km / h
Come on, give me an answer before January 2

Let the speed of no wind be x, then downwind (x + 30), upwind (X-30)
4(X+30)=5(X-30) X=270
S = 4 * (270 + 30) = 1200 km!