Hi all,

I hope someone may be able to clue me in as to what I'm doing wrong with this problem. This is a MBT.

Special kinds of cotton that grow fibers of green or brown have been around since the 1930s but only recently became commercially feasible when a long-fibered variety that can be spun by machine was finally bred. Since the cotton need not be dyed, processing plants avoid the expense of dyeing and the ecological hazards of getting rid of leftover dye and by-products.

So I understood how to diagram the stimulus. "Spun by machine --> commercially viable"

When I looked at answer choice (B): Green and brown cottons that can be spun only by hand are not commercially viable" I diagrammed it as "Spun by hand --> /commercially viable". In order to get to answer choice (B), you would need to negate the sufficient and necessary which gives "/Spun by machine --> /commercially viable" which is an invalid argument form (mistake in negation).

What am I doing wrong? I am having a hard time seeing how answer choice (B) can be diagrammed as "/commercially viable -->spun by hand" Thanks!

Only poetry cannot be translated well.

Why is it diagrammed /TW-->P?

I thought that with cannot we pick one idea, negate it and make it the necessary. So if I chose poetry to be negated, why can it not be TW-->/P. Some help would be great. Thank you!

Hi guys,

For question #2, we are asked to break down this argument into premises, conclusion, and context.

The common procedure for determining whether a food additive should be banned from use is to compare its health related benefits with its potential risks. Yellow Dye No. 5, an additive used to color lemon soda, might cause allergic reactions in a few consumers. For most consumers of lemon soda, however, the coloring enhances their enjoyment of the beverage. This particular additive should not be banned, therefore, because its benefits greatly outweigh its risks.

This was my answer:

Context: The common procedure for determining whether a food additive should be banned from use is to compare its [food additive] health related benefits with its potential risks.

Premise: Yellow Dye No. 5, an additive used to color lemon soda, might cause allergic reactions in a few consumers.

Premise: For most consumers of lemon soda, however, the coloring enhances their [most consumers] enjoyment of the beverage.

Premise/Sub Conclusion: because its [Yellow Dye No. 5] benefits greatly outweigh its risks.

Main Conclusion: This particular additive [Yellow Dye No. 5] should not be banned.

J.Y.'s was different. Can people explain to me why my answer is wrong? It makes sense to me since the first two premises explain why the sub conclusion (Yellow Dye No.5 benefits greatly outweigh its risks) which then in turn supports the main conclusion. Thanks!

Admin note: This is the lesson:

http://classic.7sage.com/lesson/quiz-context-identification-1-answers/

Hi guys,

I am planning on taking the LSAT in Sept and was wondering if anyone knows what the Marymount University in Alrington, VA testing center is like? I want to go there to do some practice tests but I'm not sure which rooms they used. Any help would be appreciated. Thanks!

Hello all,

I thought I'd share my difference between my timed and blind review score. I apologize if this has been brought up in previous discussion threads. I have finished most of the curriculum and plan on taking the test in June 2016.

I took PT 56 (Dec 2008) and my timed score was a 152 and my BR was a 173. To me, this is a huge difference and I honestly thought my BR was a fluke. I was not expecting to see that big of a jump. I was wondering if anyone else has been in my position and how they were able to close the gap between their timed and blind review scores. Any strategies/anecdotes would be helpful!

Also, what lessons should I take from these scores? Does the blind review mean it is possible for me to hit a 170+? And as a person working a full time job (I study after work and on weekends), is it possible to improve that quickly by June?

Thanks again for your advice and thoughts!

Hello 7sagers,

I just signed up a while ago and thought I'd give this forum a shot. I was wondering on logic games, when do you create a table between the game pieces and the base set like in the Feb 1993, Logic Game #4? Sometimes I'll create a table when it is not needed. Thanks for all the help!

Hey guys,

I was going through Advanced Logic: Quiz on Mixed Conditionals and got mixed up on #20. Hopefully someone could help me out here.

Except for the days where there is a zombie apocalypse, every day is a good day to study for the LSAT.

JY diagrammed it as

GSLSAT ↔ /ZA

Contrapositive: (/GSLSAT ↔ ZA)

However, I thought that "every day is a good day to study for the LSAT" is a conditional statement (embedded conditional), so you would instead diagram it as

(D→GDS) ↔ /ZA

Contrapositive: /(D→GDS) ↔ ZA = (D←s→/GDS) ↔ ZA

When I translated my diagram back to English it still makes sense to me.

Please let me know what I'm doing wrong. Thanks!