Maths Comparing Quantities part 8 (Percentage in Real Life) CBSE Class 7 Mathematics VII

TL;DR

Percentages are used in various real-life scenarios, such as determining the amount of a pizza you can eat or calculating profit percentages in business.

Transcript

hello friends this video on comparing quantities for eight is brought to you by exam feel calm no more fear from exam so now let's see where do we use percentages in real life who do we really use them in our day-to-day activities yes we do so so these were our takeaways from last slide right that proper fractions means less than 100% improper frac... Read More

Key Insights

• 😅 Percentages are used in real-life scenarios such as determining the amount of pizza you can eat or calculating profit percentages in business.
• 🙈 Proper fractions represent less than 100% and are often seen in scenarios where the numerator is smaller than the denominator.
• 🙈 Improper fractions represent more than 100% and are often seen in scenarios where the increase in price or quantity exceeds the original value.
• ✋ The selling price in business can be higher than the cost price, resulting in a profit percentage greater than 100%.
• 🗂️ Converting a percentage into a fraction can be done by dividing the percentage by 100 and simplifying the resulting fraction.
• 🖐️ Percentages play a significant role in understanding quantities and calculations in everyday life.
• ❓ Percentages are used to represent proportions and fractions of a whole in various contexts.

Questions & Answers

Q: In real-life scenarios, what does it mean when a fraction is considered a proper fraction?

A proper fraction in real-life scenarios means that the numerator is smaller than the denominator, resulting in a percentage value that is less than 100%.

Q: Why is it impossible to eat more than 100% of a pizza?

Eating more than 100% of a pizza is impossible because you cannot have more slices than are available. Therefore, the percentage of pizza you can eat will always be less than or equal to 100%.

Q: Can profit percentages in business be greater than 100%?

Yes, profit percentages in business can be greater than 100% if the selling price is higher than the cost price. The increase in price can be anything, resulting in an improper fraction and a profit percentage greater than 100%.

Q: How do you convert a percentage into a fraction?

To convert a percentage into a fraction, divide the percentage by 100. Simplify the resulting fraction to its simplest form to obtain the desired fraction.

Summary & Key Takeaways

• Percentages are used in everyday life, with proper fractions representing less than 100% and improper fractions representing more than 100%.

• In scenarios like eating pizza, the percentage of pizza you can eat will always be less than or equal to 100% because you cannot eat more slices than are available.

• In business, the selling price can be more than the cost price, resulting in a profit percentage greater than 100%.