the "how many ways" LG questions and june 01 score conversio

imjustjoking22
Posts: 461
Joined: Fri Jun 10, 2011 9:46 am

the "how many ways" LG questions and june 01 score conversio

Postby imjustjoking22 » Mon Sep 12, 2011 8:36 pm

Curse these types of questions. What is the best way to attack them? (Example- June 01 game 3 question 14). They make me panic and waste time. Two of this type of Q led to me running out of time (which I don't generally do) and bombing LG... -5 :( This killed the beautiful score I could have had with -4 in the other sections combined).

Also, does anyone know the score conversion for the june 01 PT, 92 Qs correct? My internet is down and I can't find it via google on my bberry..

Want_My_Life_Back
Posts: 39
Joined: Sun Sep 11, 2011 12:36 am

Re: the "how many ways" LG questions and june 01 score conversio

Postby Want_My_Life_Back » Mon Sep 12, 2011 10:17 pm

At least for the game in question, I believe the key is good diagramming and linking rules together to make useful deductions. Because of the second rule we know that the fourth train is always either Y or W. This combined with the other rules; (Rule #3) W>S>Y; (Rule #4) R>T/V and (Rule #5) T and V can't be adjacent, lets us come to the conclusion that when Y is fourth R,W,S have to fill slots 1,2,3 and T,Q,V and to follow Y with Q always being sixth because of rule #5.
When W is the fourth train, S,Y and either T or V must follow, and R,Q and either T or V must precede. Even though Q is a random variable it must arrive either 1st, 2nd or 3rd because otherwise T and V would be forced next to each other.
Question 14 gives us the scenario of W>R, which forces us into the first situation I gave of Y arriving fourth because if W were fourth it would force five variables into three slots. With this new information we can now work out that W has to be 1st because W now arrives before both R and S. So the only moving variables are now R/S and T/V because we previously worked out that Q is always 6th when Y is 4th. This gives us four possible outcomes when we combine the following: R>S or S>R & T>V or V>T.
The key is really taking the extra time initially to make those key deductions. Rarely are rules isolated from other rules, and by always trying to link rules together we will often create further qualifications that are not explicitly stated in the rules.
Hope this helps, and a raw score of 92 comes out to 174 on the June '01.

imjustjoking22
Posts: 461
Joined: Fri Jun 10, 2011 9:46 am

Re: the "how many ways" LG questions and june 01 score conversio

Postby imjustjoking22 » Mon Sep 12, 2011 11:12 pm

Thanks for the detailed explanation, WMLB- I actually got all of the inferences and for some reason just panic over these rather than just writing out each option (I start trying to calculate it, like "oh, it's 3^2!" ...stupid). I need to get more comfortable with doing aaall scenarios right off the bat (I tend to avoid them at all costs, but I know they are my friend! :p)

And seriously, 92 = 174? That brightened my day, thanks!!




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