The computer lab recently installed a new printer for student use.In the past 4 hours the printer has quit working 8 times.The lab monitor takes around 15 minutes to fix the printer each time it fails.What percent of the time is the printer actually available for student use?
A)33%
B)35%
C)50%
D)67%

Question

Quizplus · Accepted Answer

The printer has quit working 8 times, and each time it takes 15 minutes to fix, totaling 120 minutes (8 * 15) of downtime. Since there are 240 minutes in 4 hours (4 * 60), the printer is unavailable for 120 minutes and available for the remaining 120 minutes. Therefore, the printer is available for 50% of the time. However, the correct calculation for the percentage of time the printer is available is 120 minutes of availability out of 240 minutes total, which indeed equals 50%. The explanation mistakenly concludes with the option D (67%) as the answer, but based on the calculation provided, the correct answer should be C (50%).

The Computer Lab Recently Installed a New Printer for Student