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- ManhattanPrepLSAT1
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Thanks Received: 1909
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Atticus Finch
- Posts: 2851
- Joined: October 07th, 2009
Re: Q23
Good question amt33! These rule substitution questions can sometimes feel like they'll take forever - and sometimes they simply do require trial and error.
On this question, we need to find a rule that will have a similar impact as the original constraint requiring that G begins on the hour. The original constraint restricted G to starting at 1pm, 2pm, or 3pm. Given the way the answer choices are phrased we want to think about not which time G starts but what program it is (remember there are 5 programs total). A 1pm, 2pm, or 3pm start would make G the 1st, 3rd, or 5th program respectively. Given that there are 5 programs, answer choice (C) says this only the other way. Instead of stating when G can start, it says when G cannot - essentially the flip side of the same information.
If coming to that determination isn't something you feel you'll be able to find, then you'll need to use elimination. Go to answer choice (A) and see if you can find one way in which it's different. If so, move to answer choice (B), until you get to one for which you cannot find any differences.
For example...
(A) may give you pause for thought, but this would allow G to begin at 3:30pm while T begins at 1:30pm.
(B) is close but what about 2pm? No reason the original rule precludes G from beginning at 2pm (you may want to run a hypothetical a this point to verify that this works without breaking any rules, which it does). Since G originally could go 3rd, this answer choice does not have the same implications.
(C) would require that G be the 1st, 3rd, or 5th program - which corresponds with an on the hour start.
Hope that helps!
On this question, we need to find a rule that will have a similar impact as the original constraint requiring that G begins on the hour. The original constraint restricted G to starting at 1pm, 2pm, or 3pm. Given the way the answer choices are phrased we want to think about not which time G starts but what program it is (remember there are 5 programs total). A 1pm, 2pm, or 3pm start would make G the 1st, 3rd, or 5th program respectively. Given that there are 5 programs, answer choice (C) says this only the other way. Instead of stating when G can start, it says when G cannot - essentially the flip side of the same information.
If coming to that determination isn't something you feel you'll be able to find, then you'll need to use elimination. Go to answer choice (A) and see if you can find one way in which it's different. If so, move to answer choice (B), until you get to one for which you cannot find any differences.
For example...
(A) may give you pause for thought, but this would allow G to begin at 3:30pm while T begins at 1:30pm.
(B) is close but what about 2pm? No reason the original rule precludes G from beginning at 2pm (you may want to run a hypothetical a this point to verify that this works without breaking any rules, which it does). Since G originally could go 3rd, this answer choice does not have the same implications.
(C) would require that G be the 1st, 3rd, or 5th program - which corresponds with an on the hour start.
Hope that helps!
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- samantha.rose.shulman
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Vinny Gambini
- Posts: 24
- Joined: January 16th, 2012
Re: Q23
Just tagging on here. I've attached a diagrammed solution for Question 23. Hope it helps!
- Attachments
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- PT65, S2, G4, Q23 - Three Hours of TV Programming - ManhattanLSAT.pdf
- (76.88 KiB) Downloaded 451 times
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- niksethi12
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Thanks Received: 0
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Vinny Gambini
- Posts: 6
- Joined: September 12th, 2013
Re: Q23
I have no issues with this problem, but I think I may need a clarifier with the Matt Sherman's explanation.
My general understanding is that (A) does NOT allow the opportunity for G to start at 3:30, but it does allow the opportunity for G to start at 2:30 (per the same explanations given above).
This is because there is only a 3 hour block of programming that these shows must fit into. So if G started at 3:30 it would debase the basic rule stated in the beginning. So it's not that (A) allows 3:30 to be an option (since it was never an option), it's that it allows 2:30 to be an option? Would this thinking be correct?
My general understanding is that (A) does NOT allow the opportunity for G to start at 3:30, but it does allow the opportunity for G to start at 2:30 (per the same explanations given above).
This is because there is only a 3 hour block of programming that these shows must fit into. So if G started at 3:30 it would debase the basic rule stated in the beginning. So it's not that (A) allows 3:30 to be an option (since it was never an option), it's that it allows 2:30 to be an option? Would this thinking be correct?
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