How to solve problems based on percentage (Part - 2)

# How to solve problems based on percentage (Part - 2) Video Lecture | Quantitative Techniques for CLAT

## Quantitative Techniques for CLAT

56 videos|104 docs|95 tests

## FAQs on How to solve problems based on percentage (Part - 2) Video Lecture - Quantitative Techniques for CLAT

 1. How do you calculate percentage increase?
Ans. To calculate the percentage increase, you can use the following formula: Percentage Increase = (New Value - Old Value) / Old Value * 100. For example, if the old value is 50 and the new value is 75, the percentage increase would be ((75 - 50) / 50) * 100 = 50%.
 2. What is the formula to find the original value after a percentage increase?
Ans. If you have the final value and the percentage increase, you can find the original value using the formula: Original Value = Final Value / (1 + (Percentage Increase / 100)). For instance, if the final value is 120 and the percentage increase is 20%, the original value would be 120 / (1 + (20 / 100)) = 100.
 3. How can I calculate the percentage decrease?
Ans. To calculate the percentage decrease, you can use the formula: Percentage Decrease = (Initial Value - Final Value) / Initial Value * 100. For example, if the initial value is 80 and the final value is 60, the percentage decrease would be ((80 - 60) / 80) * 100 = 25%.
 4. What is the formula to find the original value after a percentage decrease?
Ans. If you have the final value and the percentage decrease, you can find the original value using the formula: Original Value = Final Value / (1 - (Percentage Decrease / 100)). For instance, if the final value is 90 and the percentage decrease is 10%, the original value would be 90 / (1 - (10 / 100)) = 100.
 5. How do you calculate the percentage of a whole?
Ans. To calculate the percentage of a whole, you can use the formula: Percentage = (Part / Whole) * 100. For example, if you have a part that is 25 and the whole is 100, the percentage would be (25 / 100) * 100 = 25%.

## Quantitative Techniques for CLAT

56 videos|104 docs|95 tests

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