Question

Одна бригада проложила 24 км. газа провода.Вторая-на 18 км. больше чем первая.А третья -на 9 км. больше чем первая и вторая бригада вместе.Вопрос: сколько км. проложили три бригады вместе?

Answer 1

Ответ 1)24 КМ ПЕРВАЯ БРИГАДА 2)18+24=42 КМ ВТОРАЯ БРИГАДА 3)18+24+9=51 КМ ТРЕТЬЯ БРИГАДА  4)24+42+51=117КМ ВМЕСТЕ ВСЕ ТРИ БРИГАДЫ

Answer 2

1) 24+18=42(км)-2
2) 24+42=66(км)- 1 и 2 вместе
3) 66+9=75(км)-3
4) 28+42+75=141(км)
Ответ: 141 км проложили три бригады вместе.

Answer 3

Problem Analysis

We are given information about three brigades that have laid gas pipelines. The first brigade laid 24 km of pipeline, the second brigade laid 18 km more than the first brigade, and the third brigade laid 9 km more than the combined length of the first and second brigades. We need to determine the total length of pipeline laid by all three brigades together.

Solution

Let's break down the information given and solve the problem step by step.

1. The first brigade laid 24 km of pipeline. 2. The second brigade laid 18 km more than the first brigade. 3. The third brigade laid 9 km more than the combined length of the first and second brigades.

To find the total length of pipeline laid by all three brigades together, we need to add the lengths of the pipelines laid by each brigade.

Let's calculate the lengths of the pipelines laid by each brigade:

- First brigade: 24 km - Second brigade: 24 km + 18 km = 42 km (18 km more than the first brigade) - Third brigade: (24 km + 42 km) + 9 km = 75 km (9 km more than the combined length of the first and second brigades)

Finally, we add the lengths of all three pipelines together to find the total length:

24 km + 42 km + 75 km = 141 km

The three brigades together laid a total of 141 km of gas pipeline.