155 out of 220 = 70.45%
If you scored 155 points out of a possible 220 points, your percentage grade is 70.45%, which is a C- letter grade with a GPA of 1.7.
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+ | 214 to 220 | 0 to 6 | 97.00 to 100.00 |
| A | 205 to 213 | 7 to 15 | 93.00 to 96.99 |
| A- | 198 to 204 | 16 to 22 | 90.00 to 92.99 |
| B+ | 192 to 197 | 23 to 28 | 87.00 to 89.99 |
| B | 183 to 191 | 29 to 37 | 83.00 to 86.99 |
| B- | 176 to 182 | 38 to 44 | 80.00 to 82.99 |
| C+ | 170 to 175 | 45 to 50 | 77.00 to 79.99 |
| C | 161 to 169 | 51 to 59 | 73.00 to 76.99 |
| C- | 154 to 160 | 60 to 66 | 70.00 to 72.99 |
| D+ | 148 to 153 | 67 to 72 | 67.00 to 69.99 |
| D | 139 to 147 | 73 to 81 | 63.00 to 66.99 |
| D- | 132 to 138 | 82 to 88 | 60.00 to 62.99 |
| F | 0 to 131 | 89 to 220 | 0.00 to 59.99 |
Your grade of 70.45% (C-) is highlighted in the table above. The "Correct" and "Incorrect" columns show the equivalent number of questions for your total of 220 points.
To calculate 155 out of 220 as a percentage, you divide 155 by 220 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 (155) by the total points possible (220):
155 ÷ 220 = 0.7045 - Multiply the result by 100 to get the percentage:
0.7045 × 100 = 70.45% - Convert the percentage to a letter grade using the standard scale:
70.45% = C-
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A score of 155 out of 220 (70.45%) 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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