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Course: LSAT > Unit 1
Lesson 5: Analytical Reasoning – Worked examples- Ordering setup | Overview | Rules and deductions
- Ordering setup | Given info–basic 1 | Worked example
- Ordering setup | Given info–basic 2 | Worked example
- Ordering setup | Given info–could be true | Worked example
- Ordering setup | Given info–cannot be true 1 | Worked example
- Ordering setup | Given info–cannot be true 2 | Worked example
- Ordering setup | Given info–must be true | Worked example
- Ordering setup | New info–could be true 1 | Worked example
- Ordering setup | New info–could be true 2 | Worked example
- Ordering setup | New info–could be true 3 | Worked example
- Ordering setup | Completely determines | Worked example
- Ordering setup | New info-must be true | Worked example
- Grouping setup | Overview | Rules and deductions
- Grouping setup | Given info–basic | Worked example
- Grouping setup | Given info–could be true | Worked example
- Grouping setup | Given info–must be false | Worked example
- Grouping setup | Given info–must be true 1 | Worked example
- Grouping setup | Given info–must be true 2 | Worked example
- Grouping setup | New info–could be true 1 | Worked example
- Grouping setup | New info–could be true 2 | Worked example
- Grouping setup | New info–must be true | Worked example
- Grouping setup | "Completely determines" | Worked example
- Mixed setup | Overview | Rules and deductions
- Mixed setup | Given info–basic | Worked example
- Mixed setup | Given info–could be true 1 | Worked example
- Mixed setup | Given info–could be true 2 | Worked example
- Mixed setup | Given info–must be true | Worked example
- Mixed setup | Given info–cannot be true | Worked example
- Mixed setup | New info–could be true | Worked example
- Mixed setup | New info–must be true 1 | Worked example
- Mixed setup | New info–must be true 2 | Worked example
- Mixed setup | Rule substitution | Worked example
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Mixed setup | New info–must be true 1 | Worked example
Watch a demonstration of one way to approach a "New info: must be true" question on an mixed setup from the Analytical Reasoning section of the LSAT.
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I've also noticed that the presenter does not adequately use time-saving strategies in any of the LG videos here. A quick glance at the options would lead us to check the option with L first, since it is an unrestricted entity and we know that H is before F. This leaves only G and H to go in the two slots in the first segment.(6 votes)
How could you not arrive to A?
If H must come before both F and MK, and L is unrestricted, both scenarios can be fulfilled with : 1: G,H; 2: F; 3: M,K; 4: L... and 1: G,H; 2: F; 3: L; 4: M,K.
This would fulfill all requirements, given the new rule that G must be interviewed with H.(3 votes)- Well, those scenarios do not FORCE G to be in segment 1. L or G could still be interchanged with no restrictions.
But if you put L in position 2 in the first scenario, F has to go in position 4 and that leaves G and H for position 1.
L FORCES F to go in position 3 in the second scenario leaving G and H for first.
The wording of the questions is what gets me, too, but it wants to know what would force G to be with H.(3 votes)
- If F in position 2. G can go in position 3 or 4.
If L is in position 2. It forces F to go in position 3 or 4. Also forcing G & H to be together. L in position two has a stronger force for G & H.
The questions was asking which one forces G & H together.(2 votes)
Video transcript
- [Instructor] Before
you watch this video, make sure to watch the
overview video for the setup where we went through the introduction and noted the rules and
made an initial diagram that you're gonna see me using here. The question asks Greer
must be interviewed in the same segment as Hernandez if which one of the following is true? Basically, this question is asking us, what condition would
force Greer and Hernandez to be paired up in the same segment? The answer, if it's true, would lead to Greer and Hernandez being interviewed in the same segment. And the four wrong choices
wouldn't necessarily lead to Greer and Hernandez
being interviewed together. So let's evaluate the choices and use our initial
setup to help guide us. A, Fallon is interviewed
in the second segment. We can use scenario one to see that this doesn't force
Greer and Hernandez to be together. In scenario one, Fallon
could be interviewed in the second segment and then we could put Greer alone in segment four, while Hernandez and Lewis
are together in segment one. B, Greer is interviewed
in the first segment. This doesn't force Greer and
Hernandez to be together. Take a look at scenario two. If Greer is interviewed
in the first segment, it could be alongside Lewis. Then Hernandez would be second
and Fallon would be third. There's no problem here. So this isn't our answer because Greer and Hernandez aren't interviewed together. C, Kim is interviewed
in the third segment. This is wrong for the same reason that choice A was wrong. In scenario one, Kim
already is interviewed in the third segment and Greer could be alone in segment four. So this condition isn't sufficient for us to deduce that Greer and
Hernandez are together. D, Lewis is interviewed
in the second segment. Let's test this choice out. In scenario two, if
Lewis is in segment two, that would place Fallon
alone in segment three. So, Greer and Hernandez would be the two that have to be
interviewed in segment one. Okay. And in scenario one, if Lewis
were in the second segment, that would mean that Hernandez
has to be in segment one in order to be earlier than Fallon, who would have to be in segment four. That would, again, force
Greer into segment one alongside Hernandez. That means that we have our answer. If Lewis is interviewed
in a second segment, it forces Greer and
Hernandez to be together and that's the result
that we were looking for. Let's take a quick peek at E. It tells us that Munson is interviewed in the fourth segment. This doesn't work for us because Munson is interviewed in the fourth
segment in scenario two and it doesn't result in Greer
and Hernandez being paired. So, for this question, D is our answer.