PrepTest 90 Game 3: In Out Game Re-Using Elements // Logic Games [#30] [LSAT Analytical Reasoning]

No video

PrepTest 90 Game 3: In Out Game Re-Using Elements // Logic Games [#30] [LSAT Analytical Reasoning]

Рет қаралды 4,409

Күн бұрын

This has been an interesting section of games (LSAT PrepTest 90). Each game so far has had a mostly basic setup, but with a wrinkle of some kind thrown in. For today's game, the third game from PrepTest 90, it's a basic in and out set-up with the twist that one of the elements (but only one!) gets used twice: once on the in-side (in this case "Fall") and one on the our-side ("Spring").
Subscribe: bit.ly/SubTimRi... | Enable ALL push notifications 🔔
This twist affects both of the conditional clues, and requires that we symbolize them a little differently than we would in a typical in-and-out setup.
I continue to work through all four-hundred-ish official LSAC releases. As always, if there's a particular game you'd like to see, comment down below, and I'll move it up in the order.
Watch more LSAT videos: • LSAT Games
Follow Tim Ricchuiti:
TikTok: / polymathematic
Twitter: / poly_mathematic
Instagram: / polymathematicnet
Reddit: / polymath-matic
lsat flex

Пікірлер: 26

@user-el8mf4gi9s 7 ай бұрын

this is perfect, and your humor matches mine! thank you!

@Edress786 2 жыл бұрын

You sir are amazing, thank you for uploading these videos.

@polymathematic Жыл бұрын

My pleasure!

@savannahfreitas9503 2 жыл бұрын

Thank you soooo much for this! I couldn't figure out why doing the contrapositives the normal way didn't work (I knew they didn't when I went to do Q16 and no answer choices worked). Thank you so much for explaining how we should have approached the contrapositives in the beginning of the video. Are there any other games like this that you know of? (In/out with repeating elements)

@polymathematic 2 жыл бұрын

So glad it was helpful! I've done a couple other in and out games on video, but I don't think I've done another one yet that re-uses elements (which are typically the ones where you need to be really careful about contrapositives). I'll look for one to complete. But also, if you find one, feel free to request it here and I'll put it on my list!

@kelseycooper7917 Жыл бұрын

My question is: for #17, how is E not also correct? Either V and or M must be in the Spring and Fall. So if attempting to prove E wrong, V would have to be in the fall making it HMV for fall. Then it would have to be TMO for Spring but if M is in spring then H has to be too... Don't V and T both have to be in the Spring?

@polymathematic Жыл бұрын

The trick is that the clue does NOT say if M is in the spring then H also has to be in the spring. The initial clue says if H is in the fall, then M is in the fall. The contrapositive would be that if M is NOT in the fall, then H is not in the fall. In a typical in-out game, this would mean exactly what you think, that if M is in the spring (the only way for M not to be in the fall), then H also has to be in the spring (the only way for H not to be in the fall). But because we can re-use elements, that actually doesn't have to happen. For example, you can imagine a scenario where M is in both the fall and the spring, in which case the contrapositive "if M is NOT in the fall" would not apply. That's exactly what's happening here, as you could have HMV in the fall and MTO in the spring. That doesn't break the HM rule, and it also means that even when H is in the fall, V doesn't have to be in the spring (which would eliminate (E) as a must be true answer choice).

@kalico726 7 ай бұрын

Thanks for this. But at 16:37, for #15. You sketch out HMT but then cross out HMV for choice B. Am I just sleep deprived?

@polymathematic 7 ай бұрын

No, you're right, I think I accidentally read (A) again. Really what I should've noticed is that HMV happened as one of the possibilities on #17, and so we can cross it off 'cause we had seen it before.

@squareroot1697 2 жыл бұрын

This was fun!

@polymathematic 2 жыл бұрын

Glad you think so!

@getmoneydrinkicedcapps2627 Жыл бұрын

Please explain the 93 pt logic games section, if you can. It would be of great help!

@melissamcclain9579 2 жыл бұрын

Please slow down. You speeding through does not help in figuring out the strategy.

@polymathematic 2 жыл бұрын

What’s the pacing goal you have in mind for your section? Are you looking to finish 2 games or 3 games out of the 4?

@melissamcclain9579 2 жыл бұрын

@@polymathematic I am watching you figure out the problem for yourself. Explaining to the person watching your video is secondary. I can live with that because I can pause it. But when you are just trying answer choices you move the screen up and down it is super fast.

@melissamcclain9579 2 жыл бұрын

I am 50 yo. I plan to take the LSAT in August. It is rare to find study help that even tackles the harder LGs and I can actually see what is going on in your mind. You are solving to solve the problem not sell me a program that takes weeks etc to learn all the question types.

@melissamcclain9579 2 жыл бұрын

I just want to be exposed to all LG problem types. I can decide whether I need to guess and flag. I want answer all of the questions. My goal score is 166.

@polymathematic 2 жыл бұрын

@@melissamcclain9579 So cool! Hope you continue to find them helpful and that you hit your goal score.

@Manatti06 2 ай бұрын

This in under 10 minutes... (deeps breath)

@abandonallhope.1040 Жыл бұрын

I drew out six game boards based off the MV rule and one board didn't work because it contradicted the first two rules. Is this correct? I couldn't do it without the boards.

@polymathematic Жыл бұрын

So, I'm not sure what you mean by "game boards". Like, before answering any questions you went ahead and tried to distribute the elements in six different ways to see what would happen?

@abandonallhope.1040 Жыл бұрын

@@polymathematic I had one board with M in fall and V in spring, another with V in fall and M in spring, one with MV in fall and M in spring, MV in fall and V in spring, MV in spring and M in fall, and lastly MV in spring and V in fall. All other pieces float.