Question

Город состоит из трех районов. В первом районе проживает 2/5 всего населения города. Число жителей второго района составляет 5/6 жителей первого района, а остальная часть населения проживает в третьем районе. Сколько всего жителей в городе, если во втором районе на 5000 человек больше, чем в третьем?

Answer 1

Х-всего
2/5х=6/15х- в 1м
2/5х*5/6=1/5х*5/3=1/1х*1/3=1/3х=5/15х- во втором
х-(6/15х+5/15х)=х-11/15х=4/15х- в третьем

5/15х-4/15х=5000
1/15х=5000
х=5000:1/15=5000*15=75000-жителей в городе

Answer 2

Calculation of Total Population in the City

To calculate the total population in the city, we need to use the given information about the three districts.

Let's denote: - The total population of the city as P - The population of the first district as P1 - The population of the second district as P2 - The population of the third district as P3

According to the given information: - The population of the first district is 2/5 of the total population: P1 = (2/5)P. - The population of the second district is 5/6 of the population of the first district: P2 = (5/6)P1. - The population of the third district is the remaining population after considering the first and second districts: P3 = P - P1 - P2.

We also know that the population of the second district is 5000 more than the population of the third district: P2 = P3 + 5000.

Now, let's solve these equations to find the total population of the city.

Solving the Equations

Substituting the values of P1 and P2 in terms of P into the equation P2 = P3 + 5000, we get:

(5/6)P = P - (2/5)P - (5/6)P + 5000

Simplifying the equation:

(5/6)P - (5/6)P + (2/5)P = 5000

(2/5)P = 5000

Now, we can solve for P:

P = (5000 * 5) / 2

P = 25000 / 2

P = 12500

Therefore, the total population in the city is 12,500.

Answer

The total population in the city is 12,500.

Note: The search results did not provide specific information about the population of the city or the districts. The calculation is based solely on the given information and mathematical equations.