LSAT-Section-3-Analytical-Reasoning – Section Three : Analytical Reasoning

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  1

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  2

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  3

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  4

  thus, the best choice for G is the 7th slot.
  We now need to check the earliest possible slot for

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  5

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  We can observe that F is a floating element as there is no conditions set on
  Thus, F can easily take the 1st slot.
  One of the possible orders is shown below:
  
  Thus, there can be a maximum of five performers between F and G.
  General

  Let us denote the seven slots using the numbers 1 through 7 as shown below:
  
  We need to fill in the names of the performers in each slot depending on the information provided.
  Let us name the performers Amy, Bob, Chad, Dom, Elisa, Fischer, and Grant as A, B, C, D, E, F and G.
  Let us look at the information given in the question stem and see what we have got:
  1. Since Chad performs immediately before Dom, we can write "CD" as an element implying that there is no one else performing between them.
  2. Since Grant performs sometime after Chad, and Chad and Dom are consecutive performers, Grant must perform after Dom as well. Thus, we can represent theinformation as shown below:
  
  The "…" above implies that there could be none or at least 1 performer between D and G.
  3. There are exactly two performers between Amy and Elisa. This information can be represented as shown below:
  
  Thus, we see that the above information is NOT sufficient to assign even one of the performers to his/her corresponding slot number. This implies that there would possibly be multiple solutions to the arrangements of the performers. Thus, in order to solve the questions, we would need to use the information given in the questions.

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  Geography

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  Physics

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  Chemistry
  
  2. The lecture on Geography is scheduled after the lecture on Language:
  
  3. The lecture on Language is scheduled three slots after the lecture on Physics:
  
  Thus, from '2' and '3' above:
  
  4. The lecture on History is either scheduled on the first or the third slot:
  
  Let us look at possible scenarios from the above conditions:
  Case I: H is in the 1st slot:
  
  Note: If H is 1st, then P must come 2nd and L must be after two slots, i.e., at slot 5th, else G cannot be accommodated after L.
  Case II: H is in the 3rd slot:
  Scenario A: P is in the 1st slot:
  
  Note: C and G must follow H and L respectively, so these can be in the 5th or 6th slots. Thus, M must be in the 2nd slot.
  Scenario B: P is in the 2nd slot:
  
  Note: If P is 2nd, L must be 5th; hence, G must be 6th. Also, since C comes after H, C must be 4th; hence, M must be 1st.
  Thus, we have listed all the possible scenarios above.

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  Mathematics

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  Language

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• ○

  Physics

• ○

  Chemistry

• ○

  Language

• ○

  Mathematics

• ○

  Geography