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Exam LSAT Section 1 Logical Reasoning All Questions

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Exam LSAT Section 1 Logical Reasoning topic 1 question 210 discussion

Actual exam question from Test Prep's LSAT Section 1 Logical Reasoning
Question #: 210
Topic #: 1
[All LSAT Section 1 Logical Reasoning Questions]

A crew of up to five workers is to install a partition in at most three days. The crew completes five tasks in this order: framing, wallboarding, taping, sanding, priming. The crew is selected from the following list, which specifies exactly the tasks each person can do:

George: taping -

Helena: sanding, priming -

Inga: framing, priming -

Kelly: framing, sanding -

Leanda: wallboarding, taping -

Maricita: sanding -

Olaf: wallboarding, priming -
The following conditions must apply:
At least one task is done each day.
Taping and priming are done on different days.
Each crew member does at least one task during the installation, but no more than one task a day.
Each task is done by exactly one worker, completed the day it is started and before the next task begins.
Which one of the following could be a complete and accurate list of the members of the crew?

  • A. George, Helena, Inga, Kelly
  • B. George, Helena, Kelly, Leanda
  • C. Helena, Inga, Kelly, Olaf
  • D. Helena, Inga, Maricita, Olaf
  • E. George, Helena, Leanda, Maricita, Olaf
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
Our list of the tasks in order, plus the eligible workers, is the key here. Start with fundamentals. Someones got to do framing, right? And the only possible framers are Inga and Kelly, right? So at rock bottom, any "complete and accurate" crew list must include either Inga or Kelly to do the framing. Which means that E. can be rejected. If E. is the crew, framing doesnt happen.
Next, wallboarding. Any crew must include either Leanda or Olaf to do that task. Which knocks out A., doesnt it? No one will wallboard if A. is the crew, which makes A. impossible. And task #3, taping, needs George or Leanda, which means we need to throw out both C. and D., each of which mentions neither of those workers.
Were left with one choice, B., which must work. And maybe we can use B. to check our overall understanding of the game, what do you say? Given B.s crew, we can see that at least one member is present for each of the tasks, and there are several possibilities, as for instance this two-day job: Day 1, Kelly framing, Leanda wallboarding, and George taping; day 2, Kelly sanding and Helena priming.

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