Answer:
Increased by 5%
Step-by-step explanation:
Let at the beginning the student's score be points.
At first, it increased by 40%. So, the new score is
Then it decreased by 25%, so the new score is
At the beginning of a month the score was and at the end of that month the score was . Since the score increased by
Answer: 40/33
https://www.mathsisfun.com/adding-decimals.html
This has an explanation.