21 out of 28 = 75.00%
If you scored 21 points out of a possible 28 points, your percentage grade is 75.00%, which is a C letter grade with a GPA of 2.0.
Standard US Scale
4.0 Scale
Grade Description
Satisfactory - Meets basic requirements with some gaps in understanding.
Improvement Tips
- Identify and focus on your weaker areas
- Increase study time and create a regular schedule
- Seek help from teachers or tutors for difficult concepts
- Use multiple learning resources (videos, books, practice tests)
Detailed Grade Table
| Grade | Correct | Incorrect | Percent |
|---|---|---|---|
| A+ | 28 to 28 | 0 to 0 | 97.00 to 100.00 |
| A | 27 to 27 | 1 to 1 | 93.00 to 96.99 |
| A- | 26 to 26 | 2 to 2 | 90.00 to 92.99 |
| B+ | 25 to 25 | 3 to 3 | 87.00 to 89.99 |
| B | 24 to 24 | 4 to 4 | 83.00 to 86.99 |
| B- | 23 to 23 | 5 to 5 | 80.00 to 82.99 |
| C+ | 22 to 22 | 6 to 6 | 77.00 to 79.99 |
| C | 21 to 21 | 7 to 7 | 73.00 to 76.99 |
| C- | 20 to 20 | 8 to 8 | 70.00 to 72.99 |
| D+ | 19 to 19 | 9 to 9 | 67.00 to 69.99 |
| D | 18 to 18 | 10 to 10 | 63.00 to 66.99 |
| D- | 17 to 17 | 11 to 11 | 60.00 to 62.99 |
| F | 0 to 16 | 12 to 28 | 0.00 to 59.99 |
Your grade of 75.00% (C) is highlighted in the table above. The "Correct" and "Incorrect" columns show the equivalent number of questions for your total of 28 points.
To calculate 21 out of 28 as a percentage, you divide 21 by 28 and then multiply by 100:
This calculation gives you your percentage score, which can then be converted to a letter grade based on your school or institution's grading scale.
Step-by-step explanation:
- Divide the points earned (21) by the total points possible (28):
21 ÷ 28 = 0.7500 - Multiply the result by 100 to get the percentage:
0.7500 × 100 = 75.00% - Convert the percentage to a letter grade using the standard scale:
75.00% = C
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A score of 21 out of 28 (75.00%) has different implications depending on the educational context:
| Context | Interpretation |
|---|---|
| Homework Assignment | Adequate understanding with some gaps |
| Quiz or Test | Good preparation with some knowledge gaps |
| Final Exam | Solid understanding of core concepts |
| Course Grade | Satisfactory performance with room for improvement |
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