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## #2 - Local, Must Be True

Dave Killoran
• PowerScore Staff
• Posts: 4336
• Joined: Mar 25, 2011
#41337
Complete Question Explanation
(The complete setup for this game can be found here: lsat/viewtopic.php?t=7371)

The correct answer choice is (D)

If John passes all of his courses, then he does not receive an E in any course, and his grade possibilities are only A, B, C, or D.

Because his geology grade is higher than language block (G IR or G RI), at a minimum the geology, Italian, and Russian grades must be three separate grades. This could be A-B-C, A-C-D, or B-C-D. However, since his geology grade is one grade higher than his physics grade, at a minimum the geology, physics, Italian, and Russian grades must be either A-B-C, B-C-D, or A-B-C-D:
J92_Game_#1_#2_diagram 1.png (10.17 KiB) Viewed 1398 times
In each instance, at least one B and one C must be assigned, and so answer choice (D) is correct.
acp25
• Posts: 13
• Joined: Sep 21, 2017
#49348
Aloha!

Thank you for your diagram. It helped! However, I want to ask why E & H are not diagrammed.
Jonathan Evans
• PowerScore Staff
• Posts: 676
• Joined: Jun 09, 2016
#49550
Hi, ACP,

Good question! Basically in the explanations we provide enough of a diagram to show what is necessary to answer the question and occasionally exclude "extra" information that doesn't lead to the answer.

It's not "wrong" to diagram additional information; in fact, the extra info can be quite helpful as a resource to help answer later global questions. However, in our illustrations we endeavor to show the most direct and efficient path to the solution. Thus you may notice that we only partially diagram certain LG questions.

I hope this helps!
hope
• Posts: 42
• Joined: Feb 13, 2018
#80273
Why can we ASSUME that either I or R is not the same grade as P? Why can't either I or R be the same grade as P?
hope
• Posts: 42
• Joined: Feb 13, 2018
#80274
I forgot to ask why in the explanation I and R is shown as a minimum ABC ACD BCD? But when P comes into the mix, I and R's ACD goes away which means there is no template for that combination. The only templates made are ABC BCD and ABCD. Thanks.
KelseyWoods
• PowerScore Staff
• Posts: 1080
• Joined: Jun 26, 2013
#80425
Hi Hope!

I'm not sure I understand your first question here--I/R can be in the same grade as P, as shown in options #2 and #3 above. We just can't have both I/R in the same grade as P because rule #2 tells us that the grades for I and R are consecutive. Meaning I and R are in different but adjacent grades.

The possibilities A-B-C, A-C-D, and B-C-D are just the options for where G, I, and R can go since we know that they each have to be in different grades. Those initial options don't consider P. When P is included, the A-C-D option doesn't go away--it's option #1: G is in A and I/R in C and D. In that case, P would have to be in B.

Hope this helps!

Best,
Kelsey
hope
• Posts: 42
• Joined: Feb 13, 2018
#80445
I've got to meditate on this one a while. But I am sure that when my meditation is complete, I will understand it. Thanks again Kelsey.
parisielvirac
• Posts: 25
• Joined: Jan 20, 2021
#86781
hi there I'm confused why
R and I are show in the same slot and then separate slots on #1
this doesn't help answer the question efficiently
can you explain why the answer would not be E?
It makes no sense to me
Jeremy Press
• PowerScore Staff
• Posts: 945
• Joined: Jun 12, 2017
#86796
Hi parisielvirac,

I see where your confusion is with the diagram! When we show a slot with two variables with a backslash between them (like I/R on the C grade in Option #1 in the original post), what we mean is that one of the two of those variables (not both) will occupy that slot. So what Option #1 from the original post shows (in an efficient way) is that there are two possibilities, in that one option, for arranging I and R. Here's what they look like:
Screen Shot 2021-05-03 at 1.24.44 PM.png (13.61 KiB) Viewed 122 times
If we meant to depict BOTH variables occupying a single slot, we'd stack them on top of each other. In this game, that's impossible, because John cannot get the same grade in Italian and Russian. But if he could, this is what that would look like (if, e.g., he got a C grade in both):
Screen Shot 2021-05-03 at 1.26.38 PM.png (9.62 KiB) Viewed 122 times
The reason answer choice E is incorrect is that it does not HAVE to be true here, because (as Option #2 in the original post shows) John could potentially receive zero D grades. That means he wouldn't be receiving at least one C AND at least one D. Here are two possibilities (though they're not the only ones!) that show John doesn't have to receive a D under the conditions in this question:
Screen Shot 2021-05-03 at 1.32.20 PM.png (13.4 KiB) Viewed 122 times
I hope this helps!

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