Logical ReasoningDifficulty: Easy

PT9 S2 Q9 Explanation

The number of aircraft collisions

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsStrengthen

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Stimulus

The number of aircraft collisions on the ground is increasing because of the substantial increase in the number of flights operated by the airlines. Many of the fatalities that occur in such collisions are caused not by the collision itself, but by an inherent flaw in the cabin design of most aircraft, airlines should be required to remove all seats that restrict access to emergency exits.

What this question is testing

Strengthen

Your task

Find the choice that makes the argument's conclusion more likely to be true.

Common trap

Answers that are consistent with the argument but add no real support, or that strengthen a claim the argument doesn't make.

Winning move

Locate the gap between evidence and conclusion, then pick the choice that closes it.

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The question
9.

Which one of the following, if true, provides the most support for

Answer choices

  1. Correct91% picked this

    The number of deaths that occurred in theater fires because theater patrons could not escape was greatly reduced when theaters were required to

    Why this is right

    This answer shows a parallel situation where providing direct access to exits (aisles leading to each exit in theaters) substantially reduced fatalities in theater fires. It serves as empirical evidence that improving exit accessibility can reduce fatalities, thus supporting the plan's effectiveness in reducing aircraft collision fatalities.

    Skill tested: Strengthen · how this choice captures the argument's function is the move to repeat next time.

  2. Irrelevant Quality1% picked this

    Removing the seats that block emergency exits on aircraft will require a costly refitting

    The cost associated with refitting aircraft is irrelevant to whether the redesign will actually save lives, which is the Goal we care about. If anything, cost impacts the feasibility of implementing the safety measure, which in this case would work against the Plan.

  3. Irrelevant Comparison1% picked this

    In the event of fire, public buildings equipped with smoke detectors have fewer fatalities than do public

    This answer discusses smoke detectors reducing fatalities in public buildings by fire detection, not by easing the escape, which is a significantly different causal mechanism compared to blocking access to emergency exits on aircraft. It's not directly related to improving access to emergency exits.

  4. Unclear Impact4% picked this

    In the event of collision, passengers on planes with a smaller passenger capacity generally suffer more serious injury than do passengers on

    We don't know whether planes with smaller capacity would have better / worse access to emergency exits, so it's not clear whether this aligns with the author's Plan or not. Also, it's only about severity of injury, whereas we care more about fatalities.

  5. No Impact3% picked this

    The safety belts attached to aircraft seats function to protect passengers from the full force of impact in

    The fact that seat belts are helpful doesn't tell us anything about whether yanking out seats near emergency exits would cut down on collision fatalities.

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