LSAT Analytical Reasoning (LSAT Logic Game)

The LSAT Analytical Reasoning or known as LSAT Logic Game questions are designed to measure your ability to understand a structure of relationships and to draw conclusions about the structure. A sample logic game looks like the following:

A library is equipped with a system of pneumatic tubes for sending documents from one to another of exactly six departments—G, H, L, M, S, and T. A tube line is a pair of tubes that connects one department with exactly one other department, with documents moving in one direction in one tube and in the opposite direction in the other tube. The library’s system consists of the following seven tube lines and no others:

Line 1 connects H and L
Line 2 connects H and S
Line 3 connects L and T
Line 4 connects S and T
Line 5 connects M and T
Line 6 connects L and M
Line 7 connects G and H

Use of the system is subject to the following restrictions:

Documents to be sent between departments that are not connected by a tube line can be transferred from one line to another at departments served by two or more lines, until the document reaches its destination.
A document cannot use any tube line more than once on its way to its destination, nor can the document return to its department of origin on its way to its destination.

1. Any of the following list an acceptable pathway for a document to be sent from S to M, listing all lines used in order from the line first used to the line last used, EXCEPT
A. Line 4, line 5
B. Line 2, line 3, line 5
C. Line 2, line 1, line 6
D. Line 4, line 3, line 6
E. Line 2, line 1, line 3, line 5

2. Which of the following is complete and accurate list of the lines any one of which could be the second line used by a document sent from T to G?
A. Lines 1, 2, and 3
B. Line 1, 2, and 4
C. Line 1, 2, and 6
D. Line 2, 3, and 4
E. Line 2, 3, and 6

3. If line 3 cannot be used, a document to be sent from T to H that uses as few tube lines as possible must use line
A. 1
B. 2
C. 5
D. 6
E. 7

4. A pathway from M to H that includes as many tube lines as possible must include lines
A. 1 and 2
B. 1 and 3
C. 3 and 4
D. 4 and 5
E. 5 and 6
 

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