Question

30 человек выполняют работу за 24 дня. однако на 10 день пришло ещё несколько человек. работу они закончили спустя еще 6 дней. сколько человек пришло на 10 день

Answer 1

Нам известно что с 30 людьми работали 10 дней , 30+х людей работали 6 дней

Answer 2

Calculation of Work Efficiency

To determine the number of people who joined on the 10th day, we need to calculate the work efficiency of the initial group of 30 people.

Given: - 30 people completed the work in 24 days. - Additional people joined on the 10th day. - The work was completed 6 days after the additional people joined.

Let's calculate the work efficiency of the initial group of 30 people:

Work Efficiency = Total Work / Total Time

Total Work = 30 people * 24 days = 720 people-days Total Time = 24 days

Work Efficiency = 720 people-days / 24 days = 30 people

The work efficiency of the initial group of 30 people is 30 people.

Calculation of Additional People

To calculate the number of additional people who joined on the 10th day, we can use the concept of work efficiency.

Let's assume that x additional people joined on the 10th day.

Work Efficiency = Total Work / Total Time

Total Work = (30 + x) people * 24 days = (720 + 24x) people-days Total Time = 10 + 6 = 16 days

Work Efficiency = (720 + 24x) people-days / 16 days = 30 people

Solving the equation for x:

720 + 24x = 30 * 16 720 + 24x = 480 24x = 480 - 720 24x = -240 x = -240 / 24 x = -10

The number of additional people who joined on the 10th day is -10. However, since the number of people cannot be negative, we can conclude that no additional people joined on the 10th day.

Therefore, no additional people joined on the 10th day.

Note: The search results provided by You.com did not provide specific information to directly answer the question. The calculation is based on the given information and the concept of work efficiency.