Multiple choice general knowledge math & puzzles

On the first test of the semester, kiran scored a 60. On the last test of the semester, kiran scored 75%. By what percent did kiran's score improve?

  1. 30%

  2. 25%

  3. 22%

  4. 32%

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Improvement = New Score - Old Score = 75 - 60 = 15. Percentage improvement = (Improvement / Original Score) * 100 = (15 / 60) * 100 = 25%. 30% is a common distractor if calculated against the wrong base.