Question

В первой бригаде в 3 раза больше рабочих чем во второй когда во вторую бригаду добавили еще 15 человек в двух бригадах вместе стало 47 сколько стало рабочих во второй бригаде

Answer 1

Х чел. - было во второй 
3х чел. - было в первой
х+15  чел. - стало во второй
Всего стало 47 чел.

3х+х+15=47
4х=47-15
4х=32
х=8(чел.) - было во второй
8+15=23(чел.) стало во второй

или

1)   47-15=32(чел.) - было в двух бригадах
2)   3+1=4(части) - людей в двух бригадах
3)   32:4=8(чел.) - было во второй
4)   8+15=23(чел.) - стало во второй

Answer 2

Problem Analysis

We are given that the first brigade has three times as many workers as the second brigade. When 15 more people are added to the second brigade, the total number of workers in both brigades becomes 47. We need to determine how many workers are now in the second brigade.

Solution

Let's assume the number of workers in the second brigade before adding 15 more people is x.

According to the given information, the first brigade has three times as many workers as the second brigade. Therefore, the number of workers in the first brigade is 3x.

When 15 more people are added to the second brigade, the total number of workers in both brigades becomes 47. We can express this as the following equation:

x + 3x + 15 = 47

Simplifying the equation:

4x + 15 = 47

Subtracting 15 from both sides:

4x = 32

Dividing both sides by 4:

x = 8

Therefore, the number of workers in the second brigade is 8.

Answer

The number of workers in the second brigade is 8.