The meaning of the percentage.

The video tutorial explains how to calculate the success and failure percentages of students in exams. It begins by discussing a class with a 100% success rate and compares it to another class with a 50% success rate. The tutorial then demonstrates how to calculate the number of successful students using the success percentage and total number of students. An example is provided where the success percentage is calculated for a class with 4 successful students out of 10, resulting in a 40% success rate.

If a class has a 100% success rate, what can be said about the failure rate?

• The failure rate is 0%

• The failure rate is 50%

• The failure rate is 100%

• The failure rate is 10%

In a class of 10 students with a 50% success rate, how many students failed?

• 2 students

• 10 students

• 5 students

• 8 students

How do you calculate the number of successful students if you know the success percentage?

• Divide the success percentage by the total number of students

• Subtract the success percentage from 100

• Add the success percentage to the total number of students

• Multiply the success percentage by the total number of students

What is the success percentage if 4 out of 10 students succeed?

• 30%

• 50%

• 20%

• 40%

If a class has 10 students and 4 succeed, what is the failure percentage?

• 30%

• 60%

• 40%

• 50%