In order to pass a unit test, a student must answer 80% or more of the questions correctly. If a unit test has 75 questions, what is the largest number of questions that the student could answer incorrectly, but still pass the unit test?

Question

Quizplus · Accepted Answer

The Answer is At least 80% of 75 questions must be answered correctly.

80 \% ext { of } 75 = 0.8 imes 75 = 60

At least 60 questions must be answered correctly.

75 - 60 = 15

The largest number of questions that the student could answer incorrectly, but still pass the test, is 15 questions.

In Order to Pass a Unit Test, a Student Must