Question

Автомобиль и автобус выехали одновременно из одного пункта в одном направлении.Скорость автомобиля 80км/ч,а автобус 40км/ч.Определите время,через которое расстояния между ними будет 120км.

Answer 1

1) 80-40=40(км)- скорость удаления.
2) 120:40=3(ч)- потребуется.
Ответ: 3 часа.

Answer 2

80+40=120КМ ПРОЕДУТ ВМЕСТЕ ЗА 1ЧАС 80-40=40КМ СКОРОСТЬ АВТОМ.БОЛЬШЕ 120:40=3Ч ЕСЛИ АВТОМ. ЗА 3Ч 80*3=240КМ 40*3=120КМ ЭТОАВТОБУС ЗА3Ч 240-120=120 ОТВЕТ ЧЕРЕЗ 3ЧАСА РАССТОЯНИЕ МЕЖДУ НИМИ БУДЕТ 120КМ

Answer 3

Problem Analysis

We are given that a car and a bus start from the same point in the same direction. The car has a speed of 80 km/h, and the bus has a speed of 40 km/h. We need to determine the time it takes for the distance between them to be 120 km.

Solution

To solve this problem, we can use the formula: distance = speed × time.

Let's assume that the time it takes for the distance between the car and the bus to be 120 km is t hours.

The distance traveled by the car in t hours is given by: distance_car = speed_car × t.

The distance traveled by the bus in t hours is given by: distance_bus = speed_bus × t.

According to the problem, the distance between the car and the bus is 120 km. Therefore, we can write the equation: distance_car - distance_bus = 120.

Substituting the values we have, we get: (speed_car × t) - (speed_bus × t) = 120.

Simplifying the equation, we have: (80 × t) - (40 × t) = 120.

Solving for t, we get: 40 × t = 120.

Dividing both sides of the equation by 40, we find: t = 3.

Therefore, it will take 3 hours for the distance between the car and the bus to be 120 km.

Answer

The time it takes for the distance between the car and the bus to be 120 km is 3 hours.