#16 - Local

[Administrator]

Complete Question Explanation

The correct answer choice is (E).

Answer choice (A):

Answer choice (B):

Answer choice (C):

Answer choice (D):

Answer choice (E): This is the correct answer choice.


This explanation is still in progress. Please post any questions below!

[momgoingbacktoschool]

Complete Question Explanation

The correct answer choice is (E).

Answer choice (A):

Answer choice (B):

Answer choice (C):

Answer choice (D):

Answer choice (E): This is the correct answer choice.


This explanation is still in progress. Please post any questions below!

What's the best way to answer this question besides spending 2 min and 20 seconds diagramming each answer choice?

[180bound]

I have the same question as the previous user. I can do the problem but testing out each answer choice is killing my time. How would one who has not seen this question before go about attacking this?

[Paul Marsh]

Hey 180bound. Awesome username, love that confidence. Let's walk through this one.

For Local questions like this one, the first thing we want to do is draw a new diagram incorporating our new rule. I then want to look at my old rules and see what inferences I can come up with by combining them with my new rule.

Here, my new rule tells me that R is on days 2 and 4. That really starts to limit where things can go in my watercolor row, so my first move is to determine where P and S will go. I know from my initial setup to this game that S can't go in week 1 (go check the Setup thread for this Game if you weren't able to get that inference - but basically our last rule prevents H from ever going in week 1 and so because of our 3rd rule, S can't go in week 1 either). That means P has to be in week 1, which leaves S going in week 3. Because of my 3rd rule, that means that H has to go in week 3 up in my oil painting row.

So my local diagram starts to look like:

_ _ H _

P R S R

What quick Not Laws can we draw in that local diagram? Well, because of our 2nd rule, G can't go in Week 1 (since P is in week 1). Remember that in our initial setup for this game, we made the inference that H can never go in week 1. So since G and H both can't go in week 1, that means I has to go in week 1. And because of our first rule, we now know that neither I nor H can go in week 2, so that means G has to go there. So we have everything figured out except for our week 4 spot in the oil painting row. That last spot can't be H because of our first rule, but it could be either I or G.

So our final local diagram here looks like:

I G H I/G

P R S R

Could be True questions always ask us about what we don't know (uncertainty), so before I even look at my answer choices I can predict that my answer is either going to be "I is in week 4" or "G is in week 4". I then finally come down to my answer choices and E perfectly matches my prediction. No testing out of answer choices required.

Hope that helps!