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Problem Set 1: Ratio & Proportion Video Lecture | General Test Preparation for CUET

159 videos|341 docs|385 tests

FAQs on Problem Set 1: Ratio & Proportion Video Lecture - General Test Preparation for CUET

1. What is ratio?
Ans. Ratio is the comparison of two or more quantities of the same kind by division. For example, if there are 5 apples and 3 oranges, the ratio of apples to oranges is 5:3.
2. How do you simplify ratios?
Ans. To simplify ratios, you need to divide both sides of the ratio by their greatest common factor (GCF). For example, if the ratio is 20:30, you can simplify it by dividing both sides by 10 to get 2:3.
3. What is proportion?
Ans. Proportion is an equation that states that two ratios are equal. For example, if the ratio of apples to oranges is 5:3, and the ratio of bananas to oranges is 10:3, then the proportion can be written as 5:3 = 10:6.
4. What is cross-multiplication in proportion?
Ans. Cross-multiplication is a method used to solve proportions. It involves multiplying the numerator of one ratio by the denominator of the other ratio and setting them equal to each other. For example, if the proportion is 5:3 = 10:x, then you would cross-multiply by multiplying 5 times x and 3 times 10, and then solve for x.
5. How can ratios and proportions be used in real-life situations?
Ans. Ratios and proportions can be used in various real-life situations such as cooking (measuring ingredients), construction (calculating the amount of materials needed), and finance (calculating interest rates and loan payments). They can also be used to compare different quantities in a meaningful way.
159 videos|341 docs|385 tests

Timeline

00:00 Introduction
00:08 Example 1
01:18 Example 2
03:45 Example 3
03:45 Question 1
07:03 Example 4
07:53 Example 5
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