155 out of 231 = 67.10%
If you scored 155 points out of a possible 231 points, your percentage grade is 67.10%, which is a D+ letter grade with a GPA of 1.3.
Standard US Scale
4.0 Scale
Grade Description
Needs Improvement - Barely meets minimum requirements with significant gaps.
Improvement Tips
- Meet with your teacher to create an improvement plan
- Establish a daily study routine with specific goals
- Find a tutor or study partner to help with challenging topics
- Break down complex topics into smaller, manageable parts
Detailed Grade Table
| Grade | Correct | Incorrect | Percent |
|---|---|---|---|
| A+ | 225 to 231 | 0 to 6 | 97.00 to 100.00 |
| A | 215 to 224 | 7 to 16 | 93.00 to 96.99 |
| A- | 208 to 214 | 17 to 23 | 90.00 to 92.99 |
| B+ | 201 to 207 | 24 to 30 | 87.00 to 89.99 |
| B | 192 to 200 | 31 to 39 | 83.00 to 86.99 |
| B- | 185 to 191 | 40 to 46 | 80.00 to 82.99 |
| C+ | 178 to 184 | 47 to 53 | 77.00 to 79.99 |
| C | 169 to 177 | 54 to 62 | 73.00 to 76.99 |
| C- | 162 to 168 | 63 to 69 | 70.00 to 72.99 |
| D+ | 155 to 161 | 70 to 76 | 67.00 to 69.99 |
| D | 146 to 154 | 77 to 85 | 63.00 to 66.99 |
| D- | 139 to 145 | 86 to 92 | 60.00 to 62.99 |
| F | 0 to 138 | 93 to 231 | 0.00 to 59.99 |
Your grade of 67.10% (D+) is highlighted in the table above. The "Correct" and "Incorrect" columns show the equivalent number of questions for your total of 231 points.
To calculate 155 out of 231 as a percentage, you divide 155 by 231 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 (231):
155 ÷ 231 = 0.6710 - Multiply the result by 100 to get the percentage:
0.6710 × 100 = 67.10% - Convert the percentage to a letter grade using the standard scale:
67.10% = D+
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A score of 155 out of 231 (67.10%) has different implications depending on the educational context:
| Context | Interpretation |
|---|---|
| Homework Assignment | Basic understanding with significant gaps |
| Quiz or Test | Minimal preparation with significant gaps |
| Final Exam | Basic understanding of core concepts |
| Course Grade | Minimal acceptable performance |
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