Based on the information given, it can be noted that the initial grade will be 50% while the grade will eventually improve to 100%.
Since the Target Score is 1,000 points. If the person just answered the minimum number of questions and have earned 500 points, therefore, the grade will be:
= 500/1000 = 50%
On the other hand, when the person gets 1000, the grade will be:
= 1000/1000 = 100%
Therefore, the values are 50% and 100% respectively.
Learn more about grades on:
https://brainly.com/question/21479710