Question

Петр Ленивцев может покрасить стену за 24 ч а Иван Трудолюб за 8 ч Какая часть стены останется неокрашенной после 1 ч совместной работы Ленивцева и Трудолюба ?

Answer 1

Производительность Пети равна 1/24 стены в час
производительность Вани равна 1/8 стены в час
их общая производительность равна 1/24+1/8=4/24=1/6 стены в час
неокрашенной останется 1-1/6=6/6-1/6=5/6 стены

Answer 2

Calculation of Wall Painting Time

To calculate the portion of the wall that remains unpainted after 1 hour of joint work by Lenivtsev and Trudolyub, we can use the following formula:

Unpainted portion = 1 - (1/24 + 1/8)

Let's calculate this.

Calculation

Using the given information: - Lenivtsev can paint the wall in 24 hours. - Trudolyub can paint the wall in 8 hours. - We want to find the portion of the wall that remains unpainted after 1 hour of joint work.

We can use the formula: Unpainted portion = 1 - (1/24 + 1/8)

Result

After calculating, we find that the portion of the wall that remains unpainted after 1 hour of joint work by Lenivtsev and Trudolyub is approximately 7/24.

This means that approximately 7/24 of the wall remains unpainted after 1 hour of joint work by Lenivtsev and Trudolyub.