To calculate your final grade, you need to find the average of your two scores, weighted according to how much each part of the test is worth. If the two parts are equally weighted (i.e., each part is worth 50%), you can simply average the two percentages.

Here’s how you do it:

1. First part of the test: 75%
2. Second part of the test: 100%

Now calculate the average:

$\text{Final grade} = \frac{75 + 100}{2} = \frac{175}{2} = 87.5\%$

So, your final grade would be 87.5%.

If the parts are weighted differently (e.g., one part is worth 40% and the other is worth 60%), we would need to adjust the calculation accordingly.

Would you like to confirm the weighting of the test parts, or do you have any other questions?

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Here are 5 related questions to explore:

1. How do I calculate my final grade if the test parts are weighted differently?
2. What if I have multiple tests with different grades, how do I calculate the overall grade?
3. How does a weighted average work in calculating grades?
4. How do I calculate my GPA based on individual grades?
5. Can a final exam be weighted differently from other parts of the course, and how do I calculate that?

Tip: Always double-check the weight of each part of your test or course. It can make a big difference in your final grade!