Question

Задача из одного посёлка в противоположных направлениях одновременно выехали автомобиль автобусчерез 2 часа растояние между ними было 310 километровнайди скорость автомобиля иси скорость автобуса 65 километров в час

Answer 1

65×2=130
310-130=180
180÷2=60
Ответ:60км/ч

Answer 2

Problem Analysis

To solve this problem, we can use the formula: distance = speed × time. We know the total distance between the car and the bus is 310 kilometers and they traveled for 2 hours before meeting each other. We can use this information to calculate the speed of the car and the bus.

Calculating the Speed of the Car and the Bus

Let's denote the speed of the car as x and the speed of the bus as y.

The car and the bus traveled for 2 hours before meeting each other, so the total distance traveled by the car in 2 hours is 2x kilometers, and the total distance traveled by the bus in 2 hours is 2y kilometers.

Given that the total distance between them is 310 kilometers, we can set up the following equation: 2x + 2y = 310

We also know that the speed of the bus is 65 kilometers per hour, so we can substitute this value into the equation: 2x + 2(65) = 310 2x + 130 = 310 2x = 310 - 130 2x = 180 x = 180 / 2 x = 90

So, the speed of the car is 90 kilometers per hour.

Now that we have the speed of the car, we can find the speed of the bus by substituting the value of x into the equation: 2(90) + 2y = 310 180 + 2y = 310 2y = 310 - 180 2y = 130 y = 65

Therefore, the speed of the bus is 65 kilometers per hour.

Conclusion

The speed of the car is 90 kilometers per hour and the speed of the bus is 65 kilometers per hour.