(18 ÷ 20) × 100 = 90
Therefore: 90%
18 ÷ 80 × 100 = 22.5% So the percentage of missed questions is 22.5%
percentage of correct = 66.67%= (18-4)/18 * 100% = 12/18 * 100% = 0.6667 * 100% = 66.67%
There are so many uses it boggles the mind. I will list a few, and perhaps people will add to it over time. * Setting and calculating discounts on sale items at the store * Calculating sales tax * Test scores (percentage correct) * Political polling Rates, and percentage is just a rate (per 100), are useful wherever you want to express one value relative to another value. Percentages become especially useful if you want to compare groups on a fairer basis. For example, if Student A gets 18 questions out of 20 correct and Student B gets 21 questions out of 30 correct, which is the better student? Student B answered MORE questions correctly, but Student A is better because they achieved a higher PERCENTAGE of right answers (18/20=90%). Student B's score, expressed as a percentage, is lower (21/30=70%). But if I had 2 questions and answered them both correctly, I'd be better (2/2=100%)
percentage of 18 = 1800% 18 * 100% = 1800%
18/20 as a percentage is 90%
18 ÷ 80 × 100 = 22.5% So the percentage of missed questions is 22.5%
22.2222%
It is 77.77... %
18%
If you received a score of 75 on a 24-question test, you can calculate the number of questions answered correctly by setting up a proportion. You would set up the equation (x/24) = 75/100, where x represents the number of correct answers. Solving for x, you would find that you answered 18 questions correctly on the test.
That is 75%
percentage of correct = 66.67%= (18-4)/18 * 100% = 12/18 * 100% = 0.6667 * 100% = 66.67%
(12/18)*100 = 66.667%
18 you gotta get 15 out of the 18 correct to pass.
77.77 percent.
18/60 equals 0.30, for a percentage score of 30%.
As a percentage 18 out of 20 is 90%