The Brains answered a 50 point question correctly, a 150-point question incorrectly, and a 200-point question incorrectly. What is their final score?
Total score possible = 50+150+200 = ??
As a percent, the final score is
[50/??]*100 = xx percent.
To calculate the total score possible, you simply add up the points for each question answered.
Total score possible = 50 + 150 + 200 = 400 points.
To calculate the final score as a percentage, you divide the obtained score by the total score possible and then multiply by 100.
Final score as a percent = (50 / 400) * 100 = 12.5 percent.
Therefore, the Brain's final score is 12.5 percent.