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Basic Forms of Calculations: Percentages Video Lecture | Mathematical Reasoning and Aptitude for UGC NET

FAQs on Basic Forms of Calculations: Percentages Video Lecture - Mathematical Reasoning and Aptitude for UGC NET

1. What are the three types of percent problems commonly encountered in the UGC NET exam?
Ans. The three types of percent problems typically encountered in the UGC NET exam are: 1) Finding the percentage of a number, 2) Finding what percentage one number is of another, and 3) Calculating percentage increase or decrease.
2. How do you calculate the percentage of a number?
Ans. To calculate the percentage of a number, you use the formula: (part/whole) × 100. For example, to find 20% of 50, you calculate (20/100) × 50 = 10.
3. What is the formula to find what percentage one number is of another?
Ans. To find what percentage one number is of another, the formula is: (part/whole) × 100. For instance, to find what percentage 25 is of 200, you use (25/200) × 100 = 12.5%.
4. How do you calculate percentage increase or decrease?
Ans. To calculate percentage increase, use the formula: [(new value - old value)/old value] × 100. For percentage decrease, the formula is: [(old value - new value)/old value] × 100. For example, if a price goes from $100 to $120, the percentage increase is [(120 - 100)/100] × 100 = 20%.
5. Why is it important to understand percent problems for the UGC NET exam?
Ans. Understanding percent problems is crucial for the UGC NET exam as they frequently appear in quantitative aptitude sections. Mastering these problems enhances analytical skills and problem-solving abilities, which are vital for success in the exam.
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