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How to Calculate Percentage of Three Subjects

Percentage Formula:

\[ \% = \frac{Sum}{3 \times Max} \times 100 \]

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1. What is a Percentage Calculator for Three Subjects?

Definition: This calculator computes the overall percentage based on the sum of marks from three subjects and the maximum possible marks per subject.

Purpose: It helps students and educators quickly determine academic performance across three subjects.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \% = \frac{Sum}{3 \times Max} \times 100 \]

Where:

Explanation: The sum of marks is divided by the total possible marks (3 × Max) and multiplied by 100 to get percentage.

3. Importance of Percentage Calculation

Details: Percentage provides a standardized way to compare academic performance across different subjects and grading systems.

4. Using the Calculator

Tips: Enter the total marks obtained (sum of all three subjects) and the maximum possible marks per subject (default 100). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 3 × Max?
A: Because there are three subjects, and we're calculating the percentage against the total possible marks.

Q2: What if my subjects have different maximum marks?
A: First convert all marks to a common scale, or use the actual maximum for each subject in a more complex calculation.

Q3: Can I use this for more than three subjects?
A: No, this calculator is specifically designed for three subjects. The divisor would need to change for a different number of subjects.

Q4: What's the typical maximum marks value?
A: Most grading systems use 100 as maximum marks per subject, but this can vary by institution.

Q5: How accurate is this calculation?
A: It gives the exact mathematical percentage based on your inputs, assuming equal weighting for all three subjects.

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