Question

Из двух городов ,расстояние между которыми 60 км ,одновременно в противоположных направлениях выехали мотоцикл и автобус .Скорость мотоцикла 76 км\ч ,а скорость автобуса 44 км\ч .Через какое время расстояние между ними будет 540 км ?

Answer 1

76+44 = 120 км/час  скорость удаления
540-60= 480 км  -расстояние, которое  нужно проехать
480:120=4 часа
 Через 4 часа  расстояние между ними будет 540 км

Answer 2

Problem Analysis

To solve this problem, we can use the concept of relative speed. The distance between the motorcycle and the bus will increase at the combined speed of both vehicles. We can calculate the time it takes for the distance to reach 540 km.

Calculating Time to Reach 540 km

The relative speed of the motorcycle and the bus is the sum of their individual speeds. Given: - Speed of the motorcycle, 76 km/h- Speed of the bus, 44 km/h The relative speed is the sum of their speeds: ``` Relative speed = 76 km/h + 44 km/h = 120 km/h ```

To find the time it takes to cover a distance of 540 km at a speed of 120 km/h, we can use the formula: ``` Time = Distance / Speed Time = 540 km / 120 km/h Time = 4.5 hours ```

Answer

The distance between the motorcycle and the bus will be 540 km after 4.5 hours.