# math - percent

I have 21 questions and I got 16 of the correct what percentage did I get correct

### Comments for math - percent

 May 01, 2010 Math Percent Problem by: Staff Original Problem I have 21 questions and I got 16 of the correct what percentage did I get correct The approach An easy and quick way to remember how to compute a percentage of correct test questions is this. Step 1 – Write out the problem as follows: 16 correct answers out of 21 questions Step 2 – Write the numbers as a fraction 16/21 Step 3 – divide the fraction to get a decimal. In this case, divide 16 by 21. 16/21 = 0.762 Step 4 – to convert the decimal to a percent, multiply your answer by 100 (just move the decimal 2 places to the right) 0.762 x 100 = 76.2 % The final answer is 76.2%. Note: The steps outlined above are a simply quick method of solving the following proportion, where P = % P is to 100 as 16 is to 21 P/100 = 16/21 Step A – multiply each side of the equation by 100: (P/100)x100 = (16/21 )x100 P = (16/21 )x100 Step B – multiply each side of the equation by 100: P = (16/21 )x100 P = .762x100 P = 76.2% Thanks for writing. Staff www.solving-math-problems.com