Hi Christopher!
If you haven't already, you may want to check out the explanation for the first question which is located on this thread:
viewtopic.php?f=245&t=16579
The first question is confusingly worded. But it's not asking what the maximum number of sessions attended by one employee is. As you noted, we already know that they each attend exactly two sessions.
The question states: "What is the maximum number of sessions attended by at least one Capital employee?" That's not asking how many sessions one Capital employee can attend. It's asking about the maximum number of sessions that could be attended by any Capital employee. We know that there are nine total sessions (three sessions each day over three days). But not every session has to be attended by a Capital employee. In fact, we know for sure there will be some sessions that are not attended by any Capital employees because we only have three employees and each employee attends exactly two sessions. So the maximum number of sessions attended by at least one Capital employee is six (three Capital employees x two sessions). So at least three of the nine sessions will
not be attended by a Capital employee. There could be more sessions that are not attended by any Capital employee because the employees can attend sessions together. But assuming the Capital employees do not attend any sessions together, the maximum number of sessions attended by at least one Capital employee is 3 Capital employees x 2 sessions = 6 sessions with a Capital employee.
The link above has a hypothetical to illustrate this.
Hope this helps!
Best,
Kelsey