Question: Production Line Efficiency Calculation

XYZ Manufacturing Company operates a production line for assembling smartphones. The line operates 8 hours per day. The following data is provided:

• The line produced 1,600 smartphones in a single day.
• The standard time to produce one smartphone is 20 minutes.
• There are 20 workstations on the production line.
• Each workstation operates independently and continuously without downtime.

Calculate:

1. The line efficiency in terms of smartphones produced per hour.
2. The utilization rate of each workstation.
3. The overall productivity of the line in terms of smartphones produced per workstation hour.

Provide your calculations and the final answers.