Main content
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
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice
Ordering setup | New info–could be true 1 | Worked example
Watch a demonstration of one way to approach a "New info: could be true" question on an ordering setup from the analytical reasoning section of the LSAT.
Want to join the conversation?
Why couldn't L be in position 3, H in 4, s/f in 5 or 6?
That still follows the rules L before F
and L before H(2 votes)- There's only 5 years to choose from. If you put L in 603, the sequence would have to be H:4/F:4 H:5/F:5 leaving S:602, which violates our condition for this question.(2 votes)
when at1:23do you take the contrapositive rule(2 votes)
1:23Video transcript
- [Instructor] Make sure
that you've already watched the setup video in which we
created the initial diagram that you'll see us using here. So the question asks if S was
begun in a later year than L, which one of the following could be true? We are looking for the choice
that's possible given the new and temporary information
that S is later than L. So since we're given new information that isn't necessarily true outside of this particular question, let's redraw our initial
diagrams that we can work from it and make deductions that are
specific to this scenario OE. All right, now this new
rule doesn't tell us anything specific about
placement, unfortunately. It only tells us that S is later than L. So what can we do? We have our big chain of elements here. And we said that initially
we were only missing S from this chain. So now that we can add in S, our chain will account for every monument and we should be able to
make some deductions now. With S being after L, that means that S can't be
part of the pair in 601. So that means that G and
M must be the monuments that are first. L is the only monument that can be second in order to leave room for
S, F and H to be later than L in some order. And then since H can only be in 604, 605, that means that F or S
is the monument in 603. We can't determine
anything else for certain. So let's find the choice
that could be true. A. F was begun in 604. This is possible but I know it can be scary
when A seems like the answer so let's do a quick test. If F is in four, H would be in five. F has to be later than L in this question so S would be third, L would have to be second
and then G M would be first. This works. Let's quickly go over the wrong choices. G was begun in 602. This must be false
because G is in 601 here. C. L was begun in 603. This is also false
because L is in 602 here. D. M was begun in 603. This can't be possible
because M is in 601. And E. S was begun in 602. This can't happen in this question because we deduced that S has
to be third, fourth, or fifth. Great work on this question. The answer is A.