Attention: This question is sourced from the GMAT Prep Focus practice test; solving it before taking the practice test can inflate your score.
A certain corporation has software that calculates the cost of a meeting. The software multiplies the hourly salary for each employee attending the meeting by the number of hours that the employee spends at the meeting. The cost of the meeting is the sum of those results. One manager has used another method to calculate the cost of a meeting. The manager takes the average (arithmetic mean) salary of all employees attending the meeting multiplied by the average number of hours that employees spend at the meeting, which is then multiplied by the total number of employees attending the meeting.
Consider the following incomplete statement:
The manager's calculation is equal to that of the software when all the employees who attend the meeting __1__ at the meeting, or if that is not the case, when all of those employees who attend the meeting __2__
Based on the information provided, select for 1 and for 2 the options that create the statement that is most accurate and rhetorically well-constructed. Make only two selections, one in each column.