Question

При ремонте дома нужн покрасить 150 рам.Рдин маляр может это сделать за 15 дней,а другой за 10 дней.За сколько дней гба маляра могт выполнить задание,работая вместе

Answer 1

1) 150 / 15 = 10 (рам) - красит один маляр за один день;
2) 150 / 10 = 15 (рам) - красит другой маляр за один день;
3) 150 / (10 + 15) = 6 (дней);
Ответ: 6 дней.

Answer 2

1)150:15=10(ч.)-за один день проработает первый маляр
2)150:10=15(ч.)-за один день проработает второй маляр
3)150:(15+10)=6(д.)-они завершат работу работая вместе

Answer 3

Calculating the Time Required for Painting 150 Frames

To determine the time required for two painters to complete the task of painting 150 frames, we need to consider the individual rates at which each painter works.

According to the information provided, one painter can complete the task in 15 days, while the other painter can complete it in 10 days

To calculate the time required for both painters to complete the task together, we can use the concept of "painting rate." The painting rate is the reciprocal of the time taken to complete a task.

Let's denote the painting rate of the first painter as R1 (in frames per day) and the painting rate of the second painter as R2 (in frames per day).

The painting rate of the first painter is 1/15 frames per day, and the painting rate of the second painter is 1/10 frames per day.

To find the combined painting rate when both painters work together, we can add their individual rates:

R_total = R1 + R2

R_total = 1/15 + 1/10

R_total = (2 + 3)/30

R_total = 5/30

R_total = 1/6 frames per day

Now, we can calculate the time required for both painters to complete the task of painting 150 frames by dividing the total number of frames by the combined painting rate:

Time = Number of frames / Combined painting rate

Time = 150 frames / (1/6 frames per day)

Time = 150 * 6 days

Time = 900 days

Therefore, it would take both painters working together approximately 900 days to complete the task of painting 150 frames.

Please note that this calculation assumes that both painters work at a constant rate and do not encounter any delays or interruptions during the painting process.