#14 - A study at a company found that most meetings showed

[Administrator]

Please post below with any questions!

[Margo]

I got this answer incorrect--I chose A--but I think I understand why this is incorrect.

The conclusion states that for a meeting to have max productivity, it needs to have a clear time frame and be no more than 30 min long.

I diagrammed this as:

If achieve max productivity clear time frame & no more than 30 min long

Is A incorrect because it is a mistaken reversal--it assumes that just because a meeting has a clear time frame and is no more than 30 min long, it is automatically maximally productive?

I can see that C is correct because it states that a meeting at the company will be maximally productive ONLY IF it has a clear time frame and lasts no more than 30 min. ("Only if" introduces the necessary condition here)
When I diagram C I got:
If maximum productivity clear time frame & no more than 30 min long

So, my diagrams for the conclusion and C are the same. Am I thinking about this the right way? Hope this post makes sense.
Thanks!

[Adam Tyson]

Absolutely correct, Margo! The stimulus uses the word "needs" to indicate the necessary condition, and your diagram of that claim is perfect. A is indeed a Mistaken Reversal of that claim, while C is a restatement of that claim. Well done!