Question #1706

Tables

Started by Scottmorse10 · started 2019-08-06 18:33 · last activity 2020-05-28 22:53 · 4 replies

When answering some of these questions I dont need to draw out the full table of in and out and this is due to the practice and timing ive developed from this course but then how should I go about answering questions like #8 where I need to look back at all tables?

Replies

  1. Ravi · 2019-08-06 21:20

    @Scottmorse10, Great question. This is a tough question, but you don't actually have to look at all of the tables. What you can do instead is check each answer choice by putting its representatives in the 'out' group. If the table works with those representatives out, then you know that's not the right answer, since we're looking for the answer that shows the pair that includes at least one representative that must be included in the committee. With (A), if F and P are out, there are no issues, so it's out. With (B), if G and J are out, then there are no issues, so this pair doesn't have to be in. With (C), if K and Q are out, then we also know that G and F must be out (since if Q is out, F is out and if K is out, G is out). This definitely doesn't work with the board where there are 3 tenants in and 2 homeowners in since K, G, and F are all tenants and would go out in this scenario, leaving there only 2 tenants in. With the board where there are 2 tenants and 3 homeowners in, we could have K, F, and G all out. However, this means that J and M would both be in, and if J and M are both in, then P must be out. But Q is already out, this there's not enough for both Q and P to be out since they're both homeowners and this game board has 3 homeowners who are in and 1 who is out. Thus, (C) is the correct answer, as we know that both K and Q cannot be out, so at least one of them must be a representative on the committee. Does this make sense? Let us know if you have any more questions!

  2. Scottmorse10 · 2019-08-12 19:54

    This does make sense im just concerned with the time that could possibly take me

  3. shunhe · 2020-01-07 15:43

    Hi @Scottmorse10, So where going back and looking at all your tables helps is if some of your hypotheticals don't have at least one of the following pairs. This shouldn't take too much time - just keep your notes organized and glance back, and this will help you eliminate one or two of the answer choices. Then, you can use Ravi's method on the rest. Hope this helps!

  4. NULL · 2020-05-28 22:53

    This question is very confusing because unless I missed something FP could have also been correct. I've missed something.

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