6/11=
.5454
54.5%
10/40 wrong means 30/40 correct 30/40 = 75% correct
You missed 12 questions out of 32, which means you got (32-12)=20 questions correct. (20/32) = 0.625; 0.625 * 100 = 62.5. Your percentage is 62.5%.
% of correct answers if the correct a nd your mistakes have the same rati ng = 3/10 * 100% = 30%
Multiply the total questions by the percentage (divide the percentage by 100 first) to get the number you had correct. In this case it would be 150 times (64/100) to give you 96 correct answers.
To find the percentage of questions you got right, divide the number of questions you got right (3) by the total number of questions (40) and multiply by 100. In this case, the percentage you got right is 7.5%.
Multiply the number of questions by the percentage expressed as a decimal: 24 x 0.75 = 18
10 questions
He got 6 wrong.
16/24 x 100 = 66.6 recurring (that is, 66.6666...) percent. That means you got a solid (D) on the test.
The percentage you would get would depend on the number you got correct, not simply the number that you answered! The maximum you could get is 100*34/39 = 87.2 %
(18 ÷ 20) × 100 = 90 Therefore: 90%
16.7%