Class 8 Exam > Class 8 Videos > Mathematical Olympiad Class 8 > Comparing Quantities
Comparing Quantities Video Lecture | Mathematical Olympiad Class 8
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28 videos|52 docs|63 tests
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FAQs on Comparing Quantities Video Lecture - Mathematical Olympiad Class 8
| 1. How can I calculate the percentage increase in quantity when comparing two quantities? |  |
Ans. To calculate the percentage increase when comparing two quantities, you can use the formula: Percentage Increase = ((New Quantity - Old Quantity) / Old Quantity) * 100%.
| 2. What is the difference between simple interest and compound interest when comparing quantities? | |
Ans. Simple interest is calculated on the principal amount only, while compound interest is calculated on the principal amount as well as the accumulated interest from previous periods.
| 3. Can you explain the concept of discount when comparing quantities? | |
Ans. A discount is a reduction in the original price of an item. It is usually expressed as a percentage of the original price and can be calculated using the formula: Discount = (Discount Rate/100) * Original Price.
| 4. How do you compare quantities using the concept of ratio and proportion? | |
Ans. Ratios are used to compare two quantities, while proportions involve comparing two ratios. To solve problems involving ratio and proportion, set up an equation where the two ratios are equal to each other and solve for the unknown quantity.
| 5. What is the significance of unitary method in comparing quantities? | |
Ans. The unitary method is a method of solving problems by finding the value of one unit and then using it to find the value of the required quantity. It is helpful in comparing quantities that are expressed in different units or scales.
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Nov 21, 2024 Last updated |
Video Description: Comparing Quantities for Class 8 2024 is part of Mathematical Olympiad Class 8 preparation.
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