The idea of column equation can be used to set x times.
Precisely
Divide the total score of the first three times plus x times by the first three times plus x times.
(92*3+ 100x) / (3+x)= 96
The solution is x=3.
You can also think about it. I was 92 for the first three times, and then I gave a hundred points for the first three times. Two points are 94, 94, 94, 94.
On second thought, give one hundred to the first four times. One point at a time is 95, 95, 95, 95, 96, and then you get a hundred points.
If you give one of the first five 95 points, just three times you will get the score of 100, which are 96, 96, 96, 96 and 96 respectively.
If you want to write it in a book, use the equation method. The second method is for you to test.
Finally, I wish you success in your studies and happiness!