With an operating efficiency of 50 minutes per hour, what fraction of each hour is spent actively operating?

With an operating efficiency of 50 minutes per hour, what fraction of each hour is spent actively operating?

• A. 1/2
• B. 1/3
• C. 5/6
• D. 1

Answer: (C)

The operating efficiency of 50 minutes per hour indicates that out of a complete hour (60 minutes), 50 minutes are spent actively operating. To determine the fraction of the hour spent operating, you can express this as a ratio of the active operating time to the total time. Thus, the calculation is: Active operating time = 50 minutes Total time = 60 minutes The fraction of the hour spent actively operating is: 50 minutes / 60 minutes = 5/6 This shows that 5/6 of each hour is dedicated to productive work, which reflects a high level of efficiency. Therefore, recognizing that 5 minutes are not utilized for active operations is essential for understanding overall productivity. The choice reflecting this correct calculation is justified as the fraction representing the active operating time in relation to the full hour.

The operating efficiency of 50 minutes per hour indicates that out of a complete hour (60 minutes), 50 minutes are spent actively operating. To determine the fraction of the hour spent operating, you can express this as a ratio of the active operating time to the total time.

Thus, the calculation is:

Active operating time = 50 minutes

Total time = 60 minutes

The fraction of the hour spent actively operating is:

50 minutes / 60 minutes = 5/6

This shows that 5/6 of each hour is dedicated to productive work, which reflects a high level of efficiency. Therefore, recognizing that 5 minutes are not utilized for active operations is essential for understanding overall productivity. The choice reflecting this correct calculation is justified as the fraction representing the active operating time in relation to the full hour.