Question

Из одного населённого пункта выехали два автобуса.Автобус №1 двигался со скоростью 65 км/ч,а автобус №2 двигался быстрее и через 2 ч опередил автобус №1 на 40 км.С какой скоростью он двигался? помогите!!!!!!!!

Answer 1

1)65*2=130(км)-проехал за 2 ч автобус №1
2)130+40=170(км)-проехал автобус №2 за 2 часа
3)170:2=85(км/ч)-скорость автобуса № 2

Ответ:85 км/ч.

Answer 2

Problem Analysis

We are given that two buses, Bus #1 and Bus #2, started from the same location. Bus #1 was traveling at a speed of 65 km/h, while Bus #2 was traveling faster and overtook Bus #1 after 2 hours, covering a distance of 40 km more than Bus #1. We need to find the speed at which Bus #2 was traveling.

Solution

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

Let's calculate the distance covered by Bus #1 in 2 hours: - Distance covered by Bus #1 = speed of Bus #1 * time = 65 km/h * 2 h = 130 km.

Now, let's calculate the speed of Bus #2 using the information that it covered 40 km more than Bus #1 in the same time: - Distance covered by Bus #2 = Distance covered by Bus #1 + 40 km = 130 km + 40 km = 170 km. - Time taken by Bus #2 = 2 hours.

Using the formula speed = distance / time, we can calculate the speed of Bus #2: - Speed of Bus #2 = Distance covered by Bus #2 / Time taken by Bus #2 = 170 km / 2 h = 85 km/h.

Therefore, Bus #2 was traveling at a speed of 85 km/h.

Answer

Bus #2 was traveling at a speed of 85 km/h.