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Shortcuts for Ratio and Proportion Video Lecture | CSAT Preparation - UPSC

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FAQs on Shortcuts for Ratio and Proportion Video Lecture - CSAT Preparation - UPSC

1. What are the basic concepts of ratio and proportion?
Ans. The basic concept of ratio involves comparing two or more quantities by division, whereas proportion refers to the equality of two ratios. In ratio, the quantities being compared must have the same units, while proportion compares ratios with different units but equal values.
2. How can ratios be simplified?
Ans. Ratios can be simplified by dividing both the numerator and the denominator by their greatest common divisor (GCD) or highest common factor (HCF). By simplifying the ratio, we can express it in its simplest form.
3. How can we solve proportion problems?
Ans. To solve proportion problems, we can use the cross-multiplication method. This involves multiplying the numerator of one ratio by the denominator of the other ratio and equating the two products. By solving the resulting equation, we can find the unknown quantity.
4. What are the different types of ratios?
Ans. There are three types of ratios: (1) Part-to-part ratio compares the relationship between two different parts of a whole, (2) Part-to-whole ratio compares the relationship between a part and the whole, and (3) Whole-to-part ratio compares the relationship between the whole and one of its parts.
5. How can ratios be used in real-life situations?
Ans. Ratios can be used in various real-life situations, such as cooking recipes, financial analysis, architectural design, and sports statistics. For example, in a recipe, the ratio of ingredients determines the proportion of each ingredient needed to make a certain quantity of a dish. In financial analysis, ratios help evaluate a company's performance and profitability.
218 videos|139 docs|151 tests
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