Finding the Population of Country A

Oct 13, 2025 by miodeya.com 47 views

Introduction

In the world of mathematics, problems often involve real-world scenarios that require critical thinking and analytical skills. One such scenario is the comparison of the population of two countries, Country A and Country B. Given that Country A has three times the population of Country B, and the combined population of the two countries is 584 million people, we are tasked with finding the population of each country. In this article, we will delve into the world of algebra and solve this problem step by step.

Understanding the Problem

Let's break down the information provided:

Country A has three times the population of Country B.
The combined population of Country A and Country B is 584 million people.

We can represent the population of Country A as 3x, where x is the population of Country B. This is because Country A has three times the population of Country B.

Setting Up the Equation

We know that the combined population of Country A and Country B is 584 million people. We can set up an equation to represent this:

3x + x = 584 million

Combine like terms:

4x = 584 million

Solving for x

To find the value of x, we need to isolate it on one side of the equation. We can do this by dividing both sides of the equation by 4:

x = 584 million / 4

x = 146 million

Finding the Population of Country A

Now that we have the value of x, we can find the population of Country A by multiplying it by 3:

Population of Country A = 3x = 3(146 million) = 438 million

Finding the Population of Country B

We already know that the population of Country B is x, which is 146 million.

Conclusion

In this article, we used algebra to solve a real-world problem involving the population of two countries, Country A and Country B. By setting up an equation and solving for x, we were able to find the population of each country. The population of Country A is 438 million people, and the population of Country B is 146 million people.

Key Takeaways

Country A has three times the population of Country B.
The combined population of Country A and Country B is 584 million people.
We can represent the population of Country A as 3x, where x is the population of Country B.
We can set up an equation to represent the combined population of Country A and Country B.
We can solve for x by dividing both sides of the equation by 4.
We can find the population of Country A by multiplying x by 3.

Real-World Applications

This problem has real-world applications in fields such as demography, economics, and urban planning. Understanding the population dynamics of different countries and regions can help policymakers make informed decisions about resource allocation, infrastructure development, and social services.

Future Directions

In future articles, we can explore more complex problems involving population dynamics, such as:

How does the population of a country change over time?
What are the factors that influence population growth or decline?
How can we use population data to inform policy decisions?

By exploring these questions, we can gain a deeper understanding of the complex relationships between population, economy, and society.

References

[1] World Bank. (2022). World Development Indicators.
[2] United Nations. (2022). World Population Prospects 2022.

Introduction

In our previous article, we solved the problem of finding the population of Country A and Country B, given that Country A has three times the population of Country B and the combined population of the two countries is 584 million people. In this article, we will address some of the most frequently asked questions related to this problem.

Q&A

Q: What is the population of Country A and Country B?

A: The population of Country A is 438 million people, and the population of Country B is 146 million people.

Q: How did you find the population of Country A and Country B?

A: We used algebra to set up an equation and solve for x, which represents the population of Country B. We then multiplied x by 3 to find the population of Country A.

Q: What is the ratio of the population of Country A to Country B?

A: The ratio of the population of Country A to Country B is 3:1, meaning that Country A has three times the population of Country B.

Q: What is the combined population of Country A and Country B?

A: The combined population of Country A and Country B is 584 million people.

Q: How did you know to multiply x by 3 to find the population of Country A?

A: We knew to multiply x by 3 because the problem stated that Country A has three times the population of Country B. This means that the population of Country A is 3x, where x is the population of Country B.

Q: What are some real-world applications of this problem?

A: This problem has real-world applications in fields such as demography, economics, and urban planning. Understanding the population dynamics of different countries and regions can help policymakers make informed decisions about resource allocation, infrastructure development, and social services.

Q: Can you explain the concept of x in this problem?

A: In this problem, x represents the population of Country B. We used x as a variable to represent the unknown population of Country B, and then solved for x to find the actual population.

Q: How did you know to divide both sides of the equation by 4 to solve for x?

A: We knew to divide both sides of the equation by 4 because the equation was 4x = 584 million. To solve for x, we needed to isolate x on one side of the equation, so we divided both sides by 4.

Q: What are some potential limitations of this problem?

A: One potential limitation of this problem is that it assumes a fixed ratio between the populations of Country A and Country B. In reality, population growth and decline can be influenced by a variety of factors, including economic conditions, birth rates, and migration patterns.

Q: Can you explain the concept of a variable in this problem?

A: In this problem, x is a variable that represents the population of Country B. A variable is a value that can change or vary, and in this case, x represents the unknown population of Country B.

Q: How did you know to add the populations of Country A and Country B to find the combined population?

A: We knew to add the populations of Country A and Country B because the problem stated that the combined population of the two countries is 584 million people. We used the equation 3x + x = 584 million to represent the combined population.