Question

On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 35 questions correct. What was the percent of increase?

Answer 1

The percent that 35 is increased from 25 is (35 - 25) / 25 * 100, or 40 percent.

Answer 2

Thank you

Answer 3

welcome :D

Answer 4

why did you divide by 25 though ?

Answer 5

It was his first attempt and you need to balance the equation so it doesn't go into the thousands percent. I just remember in class you always divide by the first percent