New guides need to be purchased for the file area. There will be 250 records between guides. The file area has 40 8-tier shelving units with 60-inch shelves. A random count of six shelves was conducted with the following number of records per shelf noted: 37, 52, 43, 39, 45, 54.

Formula: Total Number of Records________

Number of Records Between File Guides

Average number of records per shelf _________________

Average number of records per filing inch _____________

Total number of filing inches _______________________

Total number of records in file area _________________

Total number of guides needed ____________________