Calculating a GPA from numerous assignment and test grades

In summary, Pedro is trying to calculate his GPA and has a total of 8 lab grades, 12 homework grades, and 4 test grades. He currently has a grade of 62% and is unsure of what it would be if he got a 90% on the final exam. By adding all of his lab grades and dividing by 8, his lab grade is 93.125%. His homework grade is 83.5% and his test grade is 28.75%. To find his current grade, you can either add the weighted scores (20% for labs, 20% for homework, 40% for tests) or multiply each score by its weight and add them together. Both methods should result
  • #1
math problem:
pedro wants to calculate his gpa.
he has the lab grades:90/100,98/100,90/100,94/100,90/100,90/100,95/100,98/100. Labs are worth 20%.

He has the test grades: 9/10,6/10,10/10,10/10,5/10,7/10,7/10,7/10,10/10,10/10,8/10,10/10. Homework is worth 20%

test grades are: 35/100, 20/100, 26/100, 34/100. Exams are 40% (each exams are worth 10%).

What is his grades so far? What would his grade be is he had a 90 on the final which is worth 20%?

I got 62 for his current grade but I am not sure
 
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  • #2
Assuming that each lab counts equally toward his "lab grade", add them all together and divide by 8.
Find his "homework" grade by adding them all together and dividing by 12.

You can either treat each test separately or all together by adding the test scores and dividing by 4.

Since you do not yet have a final exam grade, you can find his "current grade" in either of two (equivalent) ways:
The lab, homework, and tests are "weighted" 20, 20, 40: that's the same "ratio" as 1, 1, 2. Add lab grade+ homework grade+ 2*test grade and divide by 1+1+2= 4.
Or multiply lab grade by .20, homework grade by .20, test grade by .4, add them together and divide by .20+ .20+ .40= .80. You should get exactly the same answer either way. I get 73% for his "current grade".

If he gets 90% on the final exam (he got 35, 20, 26, and 34 on the regular tests and you expect him to get 90 on the final exam??). Then his grade would be .2*lab grade+ .2*homework grade+ .4*test grade+ .2*final exam.
Since .20+ .20+ .40+ .20= 1.00, you don't need to divide by anything. I get 76% for his final grade.
 
  • #3
One more question: does it matter if you multiply each test grade by .10 (since they are 10% each) then divide by?

for exams total:115/400*.2=11.5/40 *100=28.75
labs total: 745/800*.2=149/19.8*100=93.125
homework:99/12*.2=19.8/24=83.5
add them up and divide by .8?
 
Last edited:

1. How do I calculate my GPA from numerous assignment and test grades?

To calculate your GPA, you will need to convert each letter grade into a corresponding numerical value (e.g. A = 4.0, B = 3.0). Then, multiply the numerical value by the number of credit hours for each course. Add up all the credit hours and corresponding numerical values, and divide by the total number of credit hours. This will give you your GPA.

2. Can I include non-academic grades in my GPA calculation?

No, your GPA should only include grades from academic courses (e.g. math, science, English). Non-academic grades (e.g. physical education, music) should not be included in your GPA calculation.

3. How do I handle courses with different credit hours?

For courses with different credit hours, you will need to adjust the numerical value accordingly. For example, if a course is worth 3 credit hours and you received an A, you would multiply 4.0 (numerical value for A) by 3 (credit hours) to get a total of 12. Then, follow the same steps as in question 1 to calculate your GPA.

4. What if my school uses a different grading scale?

If your school uses a different grading scale (e.g. A+ = 4.33, A = 4.0), you will need to adjust the numerical values accordingly. Make sure to confirm with your school how letter grades are converted to numerical values and use that conversion when calculating your GPA.

5. Can I use an online calculator to calculate my GPA?

Yes, there are many online calculators available that can help you calculate your GPA. However, it is always a good idea to double check the results with your school's official GPA calculation method to ensure accuracy.

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