Proportion: Percentage

The video tutorial explains how to calculate success and failure percentages in a class setting. 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 out of 10 students succeeding, resulting in a 40% success rate.

If a class has a 100% success rate, what is the failure rate?

• 100%

• 50%

• 0%

• 10%

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

• 2 students

• 0 students

• 10 students

• 5 students

How do you calculate the number of successful students in a class?

• Divide the success percentage by the total number of students

• Multiply the success percentage by the total number of students

• Subtract the failure percentage from the total number of students

• Add the success percentage to the total number of students

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

• 50%

• 70%

• 60%

• 40%

If a class has 4 successful students out of 10, what is the failure percentage?

• 60%

• 30%

• 40%

• 50%