Question

От бензоколонки в противоположном направлениях выехали грузовой и легковой автомобили , скорости которых равны 50 км/ч и 70 км /ч . через какое время расстояние между автомобилями станет 288 км.?

Answer 1

1)50+70=120(км/ч)
2)288÷120=2.4(ч)

Answer 2

Problem Analysis

We have a situation where a truck and a car are leaving a gas station in opposite directions. The speeds of the truck and the car are given as 50 km/h and 70 km/h, respectively. We need to determine how long it will take for the distance between the vehicles to become 288 km.

Solution

To solve this problem, we can use the formula: time = distance / speed. We'll calculate the time it takes for both the truck and the car to travel a certain distance and then find the time it takes for the distance between them to become 288 km.

Let's calculate the time it takes for the truck and the car to travel a certain distance: - For the truck: time = distance / speed = 288 km / 50 km/h = 5.76 hours - For the car: time = distance / speed = 288 km / 70 km/h = 4.11 hours

Since we are interested in the time it takes for the distance between the vehicles to become 288 km, we need to find the time it takes for the truck and the car to travel a combined distance of 288 km. We can do this by adding the times it takes for each vehicle to travel the distance separately.

Let's calculate the total time: - Total time = time taken by the truck + time taken by the car = 5.76 hours + 4.11 hours = 9.87 hours

Therefore, it will take approximately 9.87 hours for the distance between the truck and the car to become 288 km.

Answer

It will take approximately 9.87 hours for the distance between the truck and the car to become 288 km.