Question

Два автобуса вышли одновременно с одноц стоянки в противоположных направленичх.Через 3часа расстояние между ними было 405ки.Скорость одного автобуса65кмч.найти скорость другого автобуса

Answer 1

1) 65 * 3 = 195 (км) -  прошел 1 автобус за 3 часа.
2) 405 -195 = 210 (км) - прошел 2 автобус за 3 часа.
3) 210 : 3= 70 (км/ч) - скорость второго автобуса.
               Ответ : 70 км/ч .

Answer 2

Problem Analysis

We have two buses that left a parking lot simultaneously in opposite directions. After 3 hours, the distance between them was 405 km. We are given the speed of one bus, which is 65 km/h, and we need to find the speed of the other bus.

Solution

Let's assume the speed of the other bus is x km/h.

To find the speed of the other bus, we can use the formula: speed = distance / time.

After 3 hours, the first bus has traveled a distance of 65 km/h * 3 h = 195 km.

The second bus has also traveled a distance of x km/h * 3 h = 3x km.

The total distance between the two buses after 3 hours is 405 km.

So, we can write the equation: 195 km + 3x km = 405 km.

Simplifying the equation, we get: 3x km = 405 km - 195 km.

Simplifying further, we have: 3x km = 210 km.

Dividing both sides of the equation by 3, we get: x km = 210 km / 3.

Evaluating the expression, we find: x km ≈ 70 km/h.

Therefore, the speed of the other bus is approximately 70 km/h.

Answer

The speed of the other bus is approximately 70 km/h.