Question

о eeer е (366. Получи и запиши ответ на каждое требова- ние задачи, Одна бригада за 8ч работы положила асфальт на площади 160 кв. м, а другая за это же время на площади 240 кв. м. с какой производительностью в час работала каждая бригада, если считать произво- дительность постоянной? С какой производительностью в час работали совместно две бригады? Сколько ква дратных метров дорожного полотна заасфальтировали бы за то же время две эти бригады, если бы рабо- тали с той же производительностью?​

Answer 1

Ответ:

Пошаговое объяснение:

160/8＝20 м² за час первая бригада,

240/8＝30 м² за час вторая бригада,(20+30)/2＝25 м² средняя производительность обеих бригад за час,

(20+30)*8＝400 м² заасфальтировали б обе бригады за 8 часов.

Answer 2

Problem Analysis

We are given that one team completes asphalt work on an area of 160 square meters in 8 hours, while another team completes asphalt work on an area of 240 square meters in the same time. We need to determine the productivity of each team per hour and the combined productivity of both teams. Additionally, we need to calculate the area of road surface that both teams would have asphalted in the same time if they worked at the same productivity.

Solution

Let's start by calculating the productivity of each team per hour.

Team 1 completes asphalt work on 160 square meters in 8 hours. Therefore, their productivity per hour can be calculated as:

Productivity of Team 1 = Area / Time = 160 square meters / 8 hours = 20 square meters per hour.

Team 2 completes asphalt work on 240 square meters in 8 hours. Therefore, their productivity per hour can be calculated as:

Productivity of Team 2 = Area / Time = 240 square meters / 8 hours = 30 square meters per hour.

Now, let's calculate the combined productivity of both teams.

Combined Productivity = Productivity of Team 1 + Productivity of Team 2 = 20 square meters per hour + 30 square meters per hour = 50 square meters per hour.

Finally, let's calculate the area of road surface that both teams would have asphalted in the same time if they worked at the same productivity.

To do this, we can use the combined productivity of 50 square meters per hour and the given time of 8 hours:

Area of Road Surface = Combined Productivity * Time = 50 square meters per hour * 8 hours = 400 square meters.

Therefore, both teams would have asphalted an area of 400 square meters in the same time if they worked at the same productivity.

Answer

- The first team worked at a productivity of 20 square meters per hour. - The second team worked at a productivity of 30 square meters per hour. - The combined productivity of both teams was 50 square meters per hour. - If both teams worked at the same productivity, they would have asphalted an area of 400 square meters in the same time.