June '07 PT Section 1 (LG) #22

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Knock

Posts: 5151
Joined: Wed Jun 10, 2009 3:09 pm

June '07 PT Section 1 (LG) #22

Can someone explain this to me please?

Does it have to be like this?
1 2 3
P
W N G
N N T

malfurion

Posts: 159
Joined: Sat Mar 06, 2010 5:40 pm

Re: June '07 PT Section 1 (LG) #22

There are two possibilities that work:

Code: Select all

`NW  N  TP  W  G`

or

Code: Select all

`T     NN  T  WP  N  G`

So N always has to be in #2

Knock

Posts: 5151
Joined: Wed Jun 10, 2009 3:09 pm

Re: June '07 PT Section 1 (LG) #22

malfurion wrote:There are two possibilities that work:

Code: Select all

`NW  N  TP  W  G`

or

Code: Select all

`T     NN  T  WP  N  G`

So N always has to be in #2

Okay thanks. For some reason I didn't realize that center 3 could recycle 3 materials as well, doh

Edit: Does mine not work?

malfurion

Posts: 159
Joined: Sat Mar 06, 2010 5:40 pm

Re: June '07 PT Section 1 (LG) #22

Yeah, I didn't even really work out all the values for center #3 when I was doing the question originally. I just thought about it like this: you know that P and G cannot be in #2, so that means you have to pick two from {N,T,W} to be in #2 (it can't be all 3 because there wouldn't be enough room left in #1 since P has to be there). The T-W combination doesn't work because if you have W, you have to have N too. So that leaves N-T and N-W, both of which contain N, so that's the answer.

malfurion

Posts: 159
Joined: Sat Mar 06, 2010 5:40 pm

Re: June '07 PT Section 1 (LG) #22

Knockglock wrote:Edit: Does mine not work?

I don't think you can pick N twice for the same center. Each one is either selected or not selected.

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