Maths Ratio Proportion part 3 (Comparison of Division) CBSE Class 6 Mathematics VI

TL;DR

This video explains the concept of ratio and how it is used to compare quantities using division.

Transcript

hello friends this video on ratio and proportion part 3 is brought to you by exam fear dot com no more fear from exam let's look at another example to understand the concept of comparison by division so let's say that we are trying to compare the number of girls to the number of boys in a class and this is what the data is for two different years t... Read More

Key Insights

• 🥳 Ratio is a comparison using division, allowing us to determine if quantities are proportional.
• 🥳 Comparing the mere difference in numbers does not provide the full picture of ratio.
• 🥳 An increase in one quantity does not necessarily mean an improvement in its ratio to another quantity.
• 🥳 It is crucial to consider the ratio of one quantity to another to properly compare quantities.
• 🥳 Ratio and proportion play a significant role in mathematics for comparing and analyzing quantities.
• 🥶 Exam Fear offers free quality education and learning resources for various subjects and grade levels.
• 🏆 Their four-step learning process includes video lessons, question and answer sessions, notes, and online tests.

Questions & Answers

Q: How does ratio help in comparing quantities?

Ratio is used to compare quantities by dividing one quantity by another. It allows us to determine if a change in one quantity is proportional to a change in another.

Q: What was the ratio of girls to boys in the class in 2015?

In 2015, the ratio of girls to boys was 3:7. This means that for every 7 boys, there were 3 girls in the class.

Q: Did the number of girls increase in 2016?

Yes, in 2016, the number of girls increased from 3 to 6. However, the video explains that just comparing the difference in numbers does not indicate if the ratio has improved or not.

Q: Did the ratio of girls to boys improve in 2016?

No, the ratio of girls to boys actually decreased in 2016. For every 19 boys, there were only 6 girls, compared to the ratio of 3 girls for every 7 boys in 2015.

Summary & Key Takeaways

• The video uses the example of comparing the number of girls to boys in a class in 2015 and 2016.

• In 2015, there were 3 girls and 7 boys, while in 2016, there were 6 girls and 19 boys.

• Just looking at the numbers, it seems like both the number of girls and boys increased, but the video emphasizes the importance of ratio to determine if the increase in girls is proportional to the increase in boys.