How is CBSE Class 10 Percentage Calculated?

Introduction
The Central Board of Secondary Education (CBSE) is responsible for conducting the Class 10 examinations in India. The CBSE Class 10 percentage is calculated based on the marks obtained by students in various subjects as per the CBSE guidelines.

Evaluation Scheme
CBSE follows a comprehensive evaluation scheme that combines internal assessment and external examinations to calculate the final percentage. The evaluation scheme consists of the following components:

1. Internal Assessment (IA): This component carries 20 marks and includes periodic tests, assignments, projects, and practical work. The school conducts internal assessments throughout the academic year and submits the marks to the CBSE.

2. External Examination: The external examination consists of the CBSE Board Exams conducted at the end of the academic year. It is divided into two parts:

- Theory Exams: The theory exams are conducted for subjects that do not have a practical component. These exams carry 80 marks.

- Practical Exams: For subjects with a practical component, practical exams are conducted by the respective schools. These exams carry 20 marks, which are added to the theory marks obtained by the students.

Calculation of Percentage
The CBSE Class 10 percentage is calculated by combining the marks obtained in internal assessment and external examinations. The overall percentage is determined by the following formula:

Overall Percentage = (Total Marks Obtained / Total Marks) × 100

To calculate the total marks obtained, the marks obtained in internal assessment and external examinations are added together.

Example:
Let's consider an example to understand the calculation of the CBSE Class 10 percentage. Suppose a student obtains 90 marks in internal assessment, 360 marks in theory exams, and 18 marks in practical exams.

Total Marks Obtained = Internal Assessment Marks + Theory Exam Marks + Practical Exam Marks
= 90 + 360 + 18
= 468

Total Marks = Maximum Marks for Internal Assessment + Maximum Marks for Theory Exams + Maximum Marks for Practical Exams
= 20 + 80 + 20
= 120

Overall Percentage = (Total Marks Obtained / Total Marks) × 100
= (468 / 120) × 100
= 390%

Therefore, the student's CBSE Class 10 percentage would be 390%.

Conclusion
The CBSE Class 10 percentage is calculated by combining the marks obtained in internal assessment and external examinations. The internal assessment carries 20 marks, while the external examination is divided into theory and practical exams. By following the evaluation scheme and using the formula mentioned above, students can calculate their CBSE Class 10 percentage accurately.