Question

Помогите пожалуйста решить задачу. 15 швей шьют за 4 дня. за сколько дней справятся 20 швейцарских. нужно решить пропорцию

Answer 1

1)20:4=5 ( п )
2)15:5=3 (д)
3)9:3=3 (п)
4)3*2=6 (п)

Answer 2

Problem Analysis

We are given that 15 tailors can complete a task in 4 days. We need to determine how many days it will take for 20 tailors to complete the same task.

Solution

To solve this problem, we can set up a proportion using the number of tailors and the number of days.

Let's assume that x is the number of days it will take for 20 tailors to complete the task. We can set up the proportion as follows:

15 tailors / 4 days = 20 tailors / x days

To solve for x, we can cross-multiply and then solve for x:

15 * x = 4 * 20

Simplifying the equation:

15x = 80

Dividing both sides of the equation by 15:

x = 80 / 15

Calculating the result:

x ≈ 5.33

Therefore, it will take approximately 5.33 days for 20 tailors to complete the task.

Answer

It will take approximately 5.33 days for 20 tailors to complete the task.