Question

Из пункта А выехала грузовая машина.Через 3 часа из этого же пункта в том же направлении выехала легковая машина со скоростью 60 км/ч и через 6 часов после своего выезда догнала машину.Каково скорость грузовой машины.

Answer 1

1) 60*6=360 км проехала легковая машина
2) 6+3=9 часов ехали оба машины
3)360:9=40 км/ч
Ответ : 40 км/ч  скорость грузовой машины

Answer 2

Problem Analysis

We are given that a truck left point A, and after 3 hours, a car left the same point in the same direction and caught up with the truck after 6 hours. We need to find the speed of the truck.

Solution

Let's assume the speed of the truck is x km/h. Since the car caught up with the truck after 6 hours, we can calculate the distance traveled by the truck in 6 hours using the formula distance = speed × time.

The distance traveled by the truck in 6 hours is 6x km.

We also know that the car traveled at a speed of 60 km/h and caught up with the truck after 6 hours. Therefore, the distance traveled by the car is 60 × 6 = 360 km.

Since the car caught up with the truck, the distance traveled by both vehicles must be the same. Therefore, we can set up the equation 6x = 360 and solve for x.

Calculation

Let's solve the equation 6x = 360 to find the speed of the truck.

6x = 360 Divide both sides by 6: x = 360 / 6 x = 60

Answer

The speed of the truck is 60 km/h.

Explanation

The truck traveled at a speed of 60 km/h, and the car caught up with the truck after 6 hours. Therefore, the speed of the truck is 60 km/h.