Final answer:
To find out how many questions were answered correctly on a test with 80 questions, multiply the total number of questions (80) by the percentage correct (0.85), which results in 68 questions being answered correctly.
Step-by-step explanation:
To calculate the number of multiple choice questions answered correctly if 85 percent were answered right out of a total of 80 questions, we use the following steps:
- Calculate the percentage of questions answered correctly as a number. To do this, multiply the total number of questions by the percentage (expressed as a decimal). That is: 80 questions × 0.85.
- The calculation from step one gives us the number of questions answered correctly. So the answer would be 68 questions answered correctly (since 80 × 0.85 = 68).
Therefore, if the student answered 85 percent of the questions correctly on an 80-question test, they got 68 questions right.