Diagram

[mdbutler71]

I'm lost, and not sure why.

Is it:

S/F _ _ _ _ _ _
M/N/O _ _ _ _ _ _

or

M/N/O with subscripts?

Any advice would be helpful.

Thanks

[mdbutler71]

Unbelievable. I'm an idiot. After a second look, it's an incredibly easy game.

[noah]

Now I'm curious! What did you figure out?

[nazu.s.shaikh]

Mind sharing what you found out? I'm having some trouble with Q's 9,10 and 11 and I think its due to my formatting.

[armeniandude424]

I'd be grateful to someone for explaining Q8 and 12.

[tamwaiman]

Q8: must be false
(A) spring math in 3 is impossible, because rule 4 tells us fall math is in 1 or 4:
(i) fall math is in 1--> spring math is in 2 (rule 2)
(ii) fall math is in 4--> spring math is NOT in 3 (rule 3)

(B)(C)(D)(E) are could be true.

Q12: must be true
Since 1 & 2 are the same subject and 3 & 4 are different subject, 5 & 6 must be different, too.

[scidz0]

The only question I don't understand is Q11.

The question is "In the fall oceanography orders are in folder 2, then exactly how many of the remaining FIVE folders can it be deduced which course offering's orders in that folder?"

My reasoning:
If O is in 2, then with the given rules, O must also be in 1. Since the spring oceans course in in 1, then the fall math course must be in 4. Since M is in 4, and we know that folder 3 and 4 cannot contain the same course, then folder 3 must contain N. We also know that if N is going to be in folder 5, I must be the fall N.

So: O O N M N/M M/N

So you are able to deduce a total of 3 of the remaining 5 courses, but the correct answer is 2... I don't know what happened.

[tamwaiman]

The only question I don't understand is Q11.

My reasoning:
If O is in 2, then with the given rules, O must also be in 1. Since the spring oceans course in in 1, then the fall math course must be in 4. Since M is in 4,

Stop! you are not sure whether fall nutrition or spring nutrition in folder 3, therefore only two of remaining folders can be deduced.

1. spring oceanography
2. fall oceanography
3. ? nutrition
4. fall math
5. ? ?
6. ? ?

[noah]

I'm going to trust the last poster on this one - thanks!

If someone sees that the reasoning is wrong, speak now or forever hold your peace...

[panman36]

On this game I had the unusual idea of having the subjects as the base and filling in the diagram with the numbers.

In other words my diagram went:

s: _ _ _

f: _ _ _
M N O

My reasoning was that spring and fall had the greater inherent sense of order in this case whereas the numbers were arbitrary.

Anyone think there's any merit to doing it this way? Any criticisms? I got through the game but could have gone faster, taking me 13 minutes

[timmydoeslsat]

The setup above, I believe, does not capture the inherent sense of order.

The sense of order in this game is given to us with the idea of their being six folders.

I also believe that with the two row approach, you are not making the game as easy as it can be.

The key to this game is to recognize the limited possibilities.

Slots 1 and 4 are going to be either FM or SO.

So we can go:

1) FM 2) We know would be SM because second has the same subject matter as the first. 3) ? 4) We know is SO because SO goes in either 1 or 4, thus 4. 5) ~SN we know 6) ?

We know that 3 and 4 cannot have the same subject matter. So we know that 3 cannot be FO. We only have three variables left to place in this scenario, which are SN, FO, FN.

Repeat the steps for SO going first.

[kevinp1023]

I used 2 frames to solve this. I used M/N/O as main letters and S/F as subscripts.

Here's roughly what my diagram looked like. Note that one could also frame the game further by splitting the NF/NS in folder 3 but I felt 2 frames were sufficient for me. I used the computer to generate the diagram so my apologies for the messy look.

[jeffrey.m.amico]

How did you know to use subscripts instead of using a diagram with two rows (Spring and Fall)? When I saw this game the first time, it seemed like two rows was the way to attack it. I tried this and really struggled through the questions. After reading this thread, I tried using subscripts (and frames), and solved the game relatively easily.

What in the question stem or rules tipped you off that this should be set up with subscripts instead of two rows?

[ManhattanPrepLSAT1]

What in the question stem or rules tipped you off that this should be set up with subscripts instead of two rows?

Notice that you have six folders and three courses: Mathematics, Nutrition, and Oceanography (each with a fall and spring offering). I didn't use subscripts but rather listed out 6 elements: FM, SM, FN, SN, FO, and SO. This gives you 1:1 correspondance between your elements and your positions.

if you did two rows: one for fall and one for spring, and list 6 folders across, now you have an uneven number of elements to positions. This seems to be a tougher way to work through the game.

Additionally, the idea of subscripts or two forms of each element is actually quite common. Check out the following examples for more practice:

PT31, S1, G2 - Ten Types of CD's
PT32, S3, G2 - French and Russian Works

[CeciliaH15]

What part of the game prohibits courses to be used more than once? Why couldn't it be the case that, e.g., FM gets used twice, and one of the others doesn't get used at all.

Thanks!