Question #1745

Full Example Using Only Rules

Started by abowers9594 · started 2020-02-04 20:30 · last activity 2022-01-28 21:29 · 3 replies

I noticed while writing out the rules that you can get a full example simply by knowing that if N is not chosen, then H and K are also not chosen. Thus, the example is shown below: IN: FGLNTVZ OUT: HKN Is it useful to write this out from the beginning, or wait until later to make this deduction? It saved me some time when I came to this question.

Replies

  1. Ravi · 2020-02-04 22:08

    @abowers9594, great question. When possible, I always recommend making deductions up front. As you saw firsthand, it helped you save time on that question, so whenever you see something like that, make sure to write it down! It'll likely come in handy at some point on the questions. Let us know if you have any other questions!

  2. lilshayla11@yahoo.com · 2022-01-26 22:31

    I feel like there were two correct answer choices. And L MUST be true does not make sense, let me explain why: Of course L has to get chosen as we cannot choose N or K-However- There was exactly one Panda-that was the answer I chose. After solving this I came out with-if all 3 racoons were chosen T V Z L F G

  3. Jay-Etter · 2022-01-28 21:29

    Hi Shayla, So let's start with our inferences for this one. Beginning with all three raccoons selected: In: Tr Vr Zr Out: We can use rule two to know that Np has to be out. And then the contrapositive of rule 4 to know that Kp has to be out. And likewise the contrapositive of rule 3 to know Hm has to be out. So Hm, Np, and Kp are out, and all the rest must be in. In: Tr Vr Zr Fm Gm Lp Out: Hm Np Kp. L being selected is the only one of the answer options that must be true. Let us know if you have further questions!

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