Logic Game Q (Linear, Fixed)

nickm100
Posts: 16
Joined: Sat May 23, 2009 2:42 pm

Logic Game Q (Linear, Fixed)

Postby nickm100 » Thu Dec 16, 2010 4:02 pm

I am trying to find the quickest way to solve this question. This is a take on Question 11, Section 1 of PT 11 (Game 2). Inferences have been made based on the original Q and rules...

Rules:
5 days, 3 variables ( F I J )
F>J
Variables can only be used max twice
Variables cannot be used consecutively XX

Question: What must be true?

Answers:
There is 1 F
There are 2 Fs
There is 1 I
There are 2 Is
There is 1 J


(F/I)_ _ _ (I/J)

I've already made an inference from the original Question to knock out 2 of the variables and get it down to 3, but I am trying to figure out how others would approach this. I would prefer to not have to make any hypos.

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bport hopeful
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Re: Logic Game Q (Linear, Fixed)

Postby bport hopeful » Thu Dec 16, 2010 4:08 pm

Does every F have to come before every J or does the first F have to come before a J? If its the former, then there must be two F's I think. I didn't sketch though a only looked for like 30 seconds. About to go back and look.

nickm100
Posts: 16
Joined: Sat May 23, 2009 2:42 pm

Re: Logic Game Q (Linear, Fixed)

Postby nickm100 » Thu Dec 16, 2010 4:11 pm

All Fs must be before all Js

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bport hopeful
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Re: Logic Game Q (Linear, Fixed)

Postby bport hopeful » Thu Dec 16, 2010 4:21 pm

My answer isnt right anyway. could go FJIJI.

fosterp
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Re: Logic Game Q (Linear, Fixed)

Postby fosterp » Thu Dec 16, 2010 4:24 pm

its two I's but I don't think theres any way you could just figure that out by looking at it unless you were quick thinking, though due to the rules (cant have F after J) then that would be a clue to start trying the hypotheticals that use I.

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zonto
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Re: Logic Game Q (Linear, Fixed)

Postby zonto » Thu Dec 16, 2010 4:26 pm

Should be D (two Is):

FIFJI
FJIJI
FIJIJ
FIFIJ

IFIFJ

etc...

Notice that F must be first or second since at least one F MUST be used.

nickm100
Posts: 16
Joined: Sat May 23, 2009 2:42 pm

Re: Logic Game Q (Linear, Fixed)

Postby nickm100 » Thu Dec 16, 2010 4:56 pm

zonto, your last comment makes me think I should set the diagram up more like this

(F/I) _ (I/J)

that would make it certain that F is in position 1 or 2 and make it more visible that there MUST be 2 Is. It would be a matter of thinking that there MUST be at least 1 F and 1 J, which would force them into positions 1 or 2, or 4 or 5 respectively.

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OnlyLivingBoyinNY
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Re: Logic Game Q (Linear, Fixed)

Postby OnlyLivingBoyinNY » Fri Dec 24, 2010 12:52 am

zonto wrote:Should be D (two Is):

FIFJI
FJIJI
FIJIJ
FIFIJ

IFIFJ

etc...

Notice that F must be first or second since at least one F MUST be used.



TITCR

Nick, I think you are diagramming the crap out of this game and it isn't quite necessary. Think about it like this:

Immediately when reading the rules, you will notice that two variables must be used twice in this game (2-2-1=5 spaces with 3 variables; 2x max/var. plus no consecutives). It's crucial to pick up on this because it reveals how restricted your answer choices are.

So, you have three options: double F and J, F and I, or I and J.

Following from that, you will notice that the first rule must be broken if F and J are doubled (FJFJI, IFJFJ, FIJFJ, etc). This means that, in order to solve the game, you must double F and I or I and J. Either way, I must be doubled.

dtubin
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Re: Logic Game Q (Linear, Fixed)

Postby dtubin » Fri Dec 24, 2010 6:03 am

i would jump to b and d in this problem. fills it with doubles.

F-I-F-J-J <<<wouldn't work under that rule and flipping the J-F would go against the other rule of F needing to be in front of J.

F-I-J-I-J

hope that kind helps

visually it would take me 15-20 seconds longer but since its a logic game, why not just write it down? takes like 5 seconds..




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