Stream of consciousness rationale: She takes .75 minutes to answer a question because 12 / 16 = .75. It will take her 60 minutes to take the entire exam because 80 x .75 = 60. She has 0 minutes left when she is done because 60 - 60 = 0.
The question and answer pair are described below.
Q: Jessica has one hour to take an exam. She has answered 16 out of 80 questions. She has used 12 minutes of her time. If she keeps up this same pace, how many minutes will be left when she finishes the exam?
A: 0