Question

Из двух городов,расстояние между которыми равно 625 км,навстречу друг другу одновременно выехали два автомобиля.Найдите скорость первого автомобиля,если скорость второго равна 60км/ч и автомобили встретились через 5 часов после выезда.

Answer 1

1)прошёл второй до встречи

60*5=300 км

2)прошёл первый до встречи

625-300=325 км

3)скорость первого

325:5=65 км/час

Answer 2

1)60*5=300 км. проехала вторая машина 
2)625-300=325 км проехала первая машина 
3)325/5=65 км/ч скорость первого автомобиля

Answer 3

Problem Analysis

We are given that two cars start from two different cities simultaneously and travel towards each other. The distance between the cities is 625 km. We are also given that the second car is traveling at a speed of 60 km/h and the cars meet after 5 hours. We need to find the speed of the first car.

Solution

Let's assume the speed of the first car is x km/h.

We can use the formula distance = speed × time to calculate the distance traveled by each car.

For the first car, the distance traveled is x × 5 km.

For the second car, the distance traveled is 60 × 5 km.

Since the total distance between the two cities is 625 km, we can set up the following equation:

x × 5 + 60 × 5 = 625

Simplifying the equation:

5x + 300 = 625

5x = 625 - 300

5x = 325

x = 325 / 5

x = 65

Therefore, the speed of the first car is 65 km/h.

Answer

The speed of the first car is 65 km/h.