Question

Вертолёт за 4ч пролетел 1280км а автомобиль за 5ч проехал 400км.во сколько раз скорость вертолёта больше скорости автомобиля?

Answer 1

1280 / 4 = 320км/ч скорость вертолета
400 / 5 = 80 км/ч скорость автомобиля
320/80 = 4 - в 4 раза скорость вертолета больше скорости автомобиля
Ответ: в 4 раза.

Answer 2

Calculation of Speed

To determine the ratio of the helicopter's speed to the car's speed, we need to calculate the speeds of both vehicles.

Given information: - The helicopter flew 1280 km in 4 hours. - The car traveled 400 km in 5 hours.

To calculate the speed of each vehicle, we divide the distance traveled by the time taken.

The speed of the helicopter is calculated as follows: Speed of helicopter = Distance traveled / Time taken = 1280 km / 4 hours = 320 km/h.

The speed of the car is calculated as follows: Speed of car = Distance traveled / Time taken = 400 km / 5 hours = 80 km/h.

Ratio of Speeds

To find the ratio of the helicopter's speed to the car's speed, we divide the speed of the helicopter by the speed of the car.

Ratio of speeds = Speed of helicopter / Speed of car = 320 km/h / 80 km/h = 4.

Therefore, the speed of the helicopter is 4 times greater than the speed of the car.