Question

На покраску 32 досок нужно 8 часов. сколько времени потребуется .чтобы покрасить 75 досок ?можно ли покрасить 90 досок за 24 часа если работать с той же производительностью.

Answer 1

1. 8:32=0,25(ч) узнаем сколько времени надо на одну доску
2. 0,25х75=18,75(ч) на 75 досок
3. 0,25х90=22,5(ч) да, можно покрасить 90 досок

Answer 2

Calculating Time for Painting

To calculate the time required to paint a different number of boards, we can use the given information that 32 boards require 8 hours to paint.

Given: - 32 boards require 8 hours to paint

To find: 1. Time required to paint 75 boards 2. Feasibility of painting 90 boards in 24 hours at the same productivity level

Time Required to Paint 75 Boards

To find the time required to paint 75 boards, we can set up a proportion to compare the number of boards and the time required.

Using the given information: - 32 boards require 8 hours

We can set up the proportion as follows: - 32 boards : 8 hours = 75 boards : x hours

Solving for x: - x = (75 boards * 8 hours) / 32 boards - x = 150 hours

It would take 150 hours to paint 75 boards at the same productivity level.

Feasibility of Painting 90 Boards in 24 Hours

To determine if it's feasible to paint 90 boards in 24 hours at the same productivity level, we can again set up a proportion to compare the number of boards and the time required.

Using the given information: - 32 boards require 8 hours

We can set up the proportion as follows: - 32 boards : 8 hours = 90 boards : y hours

Solving for y: - y = (90 boards * 8 hours) / 32 boards - y = 22.5 hours

It is not feasible to paint 90 boards in 24 hours at the same productivity level.

In conclusion, it would take 150 hours to paint 75 boards at the same productivity level, and it is not feasible to paint 90 boards in 24 hours at the same productivity level.