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Introduction to Percentage Video Lecture | Quantitative Aptitude for SSC CGL

320 videos|195 docs|244 tests

FAQs on Introduction to Percentage Video Lecture - Quantitative Aptitude for SSC CGL

1. What is a percentage?
Ans. A percentage is a way of expressing a proportion or a fraction out of 100. It is often denoted by the symbol "%". For example, 50% means 50 out of 100 or half of something.
2. How do you calculate a percentage increase or decrease?
Ans. To calculate a percentage increase, you can use the formula: (New Value - Old Value) / Old Value x 100. For a percentage decrease, the formula is the same, but you subtract the new value from the old value.
3. How can percentages be used in everyday life?
Ans. Percentages are used in many aspects of everyday life. They are commonly used in sales to calculate discounts, in finance to calculate interest rates, in statistics to analyze data, in cooking to adjust ingredient quantities, and in many other fields where relative proportions matter.
4. How do you find the percentage of a number?
Ans. To find the percentage of a number, you can multiply the number by the percentage as a decimal or divide the percentage by 100 and then multiply it by the number. For example, to find 25% of 80, you can multiply 80 by 0.25 or divide 25 by 100 and then multiply it by 80.
5. What is the significance of percentages in exams and assessments?
Ans. Percentages are often used in exams and assessments to measure performance and compare results. They provide a standardized way of grading and evaluating students' understanding of a subject or their overall achievement. Percentages help in quantifying and communicating the level of success or progress in a clear and concise manner.
320 videos|195 docs|244 tests
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