Question

Трое маляров могут закончить работу за 5 дней. для ускорения работы добавили еще 2 маляров. За какое время они закончат работу, если все маляры работают с одинаковой производительностью.

Answer 1

3 маляров - 5 дней, добавили ещё 2 маляров стало 3+2=5маляров 5 маляров - х дней решаем пропорцию х = 5 * 5 / 3 = 8,33дней (8дней8часов)

Answer 2

Calculating Time to Complete Painting Job

To calculate the time it takes for the additional painters to complete the job, we can use the formula:

Total Work = Work Rate × Time

Given that three painters can finish the job in 5 days, we can calculate the work rate of each painter and then use it to find the time required for five painters to finish the job.

The work rate of the three painters is calculated as follows: - Work rate of three painters = Total Work / (Number of painters × Time taken) - Work rate of three painters = Total Work / (3 × 5)

Now, we can use the work rate of three painters to find the time required for five painters to finish the job: - Time taken by five painters = Total Work / (Work rate of three painters × 5)

Let's calculate the time required for five painters to finish the job using the given information.

Calculation

The work rate of three painters: - Work rate of three painters = Total Work / (3 × 5) = Total Work / 15

Now, we can calculate the time required for five painters to finish the job: - Time taken by five painters = Total Work / (Work rate of three painters × 5) = Total Work / (Total Work / 15 × 5) = 15 / 5 = 3 days

Therefore, with the addition of two more painters, all five painters working at the same rate will be able to finish the job in 3 days.