Using Proportionality to Find the Cost of 1m of Cloth

Oct 13, 2025 by wbrum.org 80 views

Introduction

In this discussion, we will explore the concept of finding the cost of a smaller unit of measurement, in this case, 1m of cloth, given the cost of a larger unit, 2m of cloth. This problem is a classic example of a proportionality problem, where we need to find the ratio of the cost of 1m of cloth to the cost of 2m of cloth.

Understanding the Problem

The problem states that the cost of a 2m cloth is rupees 240. We are asked to find the cost of 1m of cloth. To solve this problem, we need to understand the concept of proportionality and how to use it to find the cost of 1m of cloth.

Using Proportionality to Find the Cost of 1m of Cloth

Proportionality is a concept in mathematics that states that if two quantities are proportional, then the ratio of the two quantities is constant. In this case, we can use proportionality to find the cost of 1m of cloth by setting up a proportion.

Let's denote the cost of 1m of cloth as x. We know that the cost of 2m of cloth is rupees 240. Using proportionality, we can set up the following proportion:

2m of cloth / 1m of cloth = 240 / x

We can simplify this proportion by canceling out the 2m of cloth and 1m of cloth terms:

2 / 1 = 240 / x

Now, we can cross-multiply to solve for x:

2x = 240

x = 240 / 2

x = 120

Therefore, the cost of 1m of cloth is rupees 120.

Conclusion

In this discussion, we used the concept of proportionality to find the cost of 1m of cloth given the cost of 2m of cloth. We set up a proportion and solved for the unknown variable x, which represents the cost of 1m of cloth. The final answer is rupees 120.

Real-World Applications

This problem has several real-world applications. For example, in a textile factory, the cost of producing a 2m cloth is known, but the cost of producing a 1m cloth is not. By using proportionality, the factory can calculate the cost of producing a 1m cloth, which can help them make informed decisions about production and pricing.

Tips and Tricks

When solving proportionality problems, it's essential to remember the following tips and tricks:

Always set up a proportion using the given information.
Simplify the proportion by canceling out common terms.
Cross-multiply to solve for the unknown variable.
Check your answer by plugging it back into the original proportion.

Practice Problems

Here are some practice problems to help you reinforce your understanding of proportionality:

The cost of a 3m cloth is rupees 360. Find the cost of 1m of cloth.
The cost of a 4m cloth is rupees 480. Find the cost of 1m of cloth.
The cost of a 5m cloth is rupees 600. Find the cost of 1m of cloth.

Conclusion

In conclusion, the cost of a 2m cloth is rupees 240, and the cost of 1m of cloth is rupees 120. We used the concept of proportionality to solve this problem, and we can apply this concept to real-world problems in various fields, such as textiles, manufacturing, and finance.

Introduction

In our previous article, we explored the concept of finding the cost of a smaller unit of measurement, in this case, 1m of cloth, given the cost of a larger unit, 2m of cloth. We used the concept of proportionality to solve this problem and found that the cost of 1m of cloth is rupees 120.

In this article, we will answer some frequently asked questions related to this problem and provide additional insights and examples to help you better understand the concept of proportionality.

Q&A

Q: What is proportionality?

A: Proportionality is a concept in mathematics that states that if two quantities are proportional, then the ratio of the two quantities is constant. In the context of this problem, we used proportionality to find the cost of 1m of cloth given the cost of 2m of cloth.

Q: How do I set up a proportion?

A: To set up a proportion, you need to identify the two quantities that are proportional and set up a ratio between them. In this case, we set up the proportion 2m of cloth / 1m of cloth = 240 / x.

Q: What is the difference between proportionality and direct proportionality?

A: Direct proportionality is a special case of proportionality where the ratio of the two quantities is constant and the quantities are directly proportional. In this case, we used direct proportionality to find the cost of 1m of cloth given the cost of 2m of cloth.

Q: Can I use proportionality to solve problems with more than two variables?

A: Yes, you can use proportionality to solve problems with more than two variables. However, you need to make sure that the variables are proportional and that the ratio of the variables is constant.

Q: How do I check my answer when using proportionality?

A: To check your answer, you need to plug it back into the original proportion and make sure that it is true. In this case, we plugged the answer x = 120 back into the original proportion and made sure that it was true.

Q: Can I use proportionality to solve problems with different units of measurement?

A: Yes, you can use proportionality to solve problems with different units of measurement. However, you need to make sure that the units of measurement are consistent and that the ratio of the quantities is constant.

Q: What are some real-world applications of proportionality?

A: Proportionality has many real-world applications, including:

Textiles: Finding the cost of producing a smaller unit of cloth given the cost of producing a larger unit.
Manufacturing: Finding the cost of producing a smaller unit of a product given the cost of producing a larger unit.
Finance: Finding the interest rate on a loan given the principal amount and the time period.

Conclusion

In conclusion, proportionality is a powerful tool for solving problems with proportional quantities. By understanding how to set up a proportion and solve for the unknown variable, you can apply this concept to a wide range of real-world problems. We hope that this Q&A article has provided you with a better understanding of proportionality and how to use it to solve problems.

Practice Problems

Here are some practice problems to help you reinforce your understanding of proportionality:

The cost of a 3m cloth is rupees 360. Find the cost of 1m of cloth.
The cost of a 4m cloth is rupees 480. Find the cost of 1m of cloth.
The cost of a 5m cloth is rupees 600. Find the cost of 1m of cloth.

Additional Resources

If you want to learn more about proportionality and how to use it to solve problems, we recommend checking out the following resources:

Khan Academy: Proportionality
Mathway: Proportionality
Wolfram Alpha: Proportionality

We hope that this Q&A article has provided you with a better understanding of proportionality and how to use it to solve problems. If you have any further questions or need additional help, please don't hesitate to ask.