Logical ReasoningDifficulty: Medium

PT103 S3 Q17 Explanation

Parents who wish to provide a strong

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

TopicsFlaw

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Stimulus

Parents who wish to provide a strong foundation for the musical ability of their children should provide them with a good musical education. Since formal instruction is often a part of a good musical education, parents who wish ensure that their children receive formal instruction.

What this question is testing

Flaw

Conclusion

The author tells parents: if you want your kid to have a strong musical foundation, you must make sure they get formal instruction.

Evidence

The reasoning: a strong foundation comes from a good musical education, and formal instruction is often part of that.

Evaluate

The word "often" is doing a lot of quiet work here. The argument leaps from "often included" to "must be included." Those aren't the same.

Think of it like this: But "usually" leaves room for exceptions — entrepreneurs, athletes, artists, tradespeople. Same here. If a good musical education sometimes happens without formal instruction, parents have other options.

Goal

The right answer should call out the leap from "often part of" to "required."

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
17.

The reasoning is most vulnerable to criticism on the grounds that it fails

Answer choices

  1. Bad Objection2% picked this

    parents might not be the only source of a child’s

    Whether parents are the only source of a child's musical education doesn't weaken the argument. The conclusion is just that parents need to ensure their children receive formal instruction — they can ensure this by relying on other sources (a school, a community program, a teacher). The argument doesn't depend on parents being the sole provider, so noting that other sources exist doesn't expose a flaw.

  2. Bad Objection1% picked this

    some children might not be interested in receiving a strong foundation for

    The argument's conclusion only addresses parents who want to provide this foundation — it begins with "Parents who wish to provide a strong foundation." Whether some children would prefer not to receive that foundation is irrelevant to whether the argument's reasoning is valid for parents who do want to provide it.

  3. Bad Objection16% picked this

    there are many examples of people with formal instruction whose musical

    The argument doesn't claim formal instruction is sufficient for musical ability — only that it's required for a strong foundation. Pointing out cases of formally instructed people with poor ability would only damage the argument if it had said "formal instruction guarantees ability." It didn't. So examples of formally trained but unskilled musicians don't hurt the conclusion.

  4. Correct71% picked this

    formal instruction might not always be a part of a good

    Why this is right

    This is the flaw. The argument's evidence says formal instruction is often part of a good musical education — that leaves room for good musical educations without formal instruction. But the conclusion treats formal instruction as required. If formal instruction is sometimes absent from a good musical education, then a parent could provide that good education (and the resulting strong foundation) without ensuring formal instruction. The argument moves from "often part of" to "always required," and that move ignores the possibility (D) names.

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

  5. Bad Objection9% picked this

    some children might become good musicians even if they have not had

    The conclusion is about parents who want to provide a strong foundation, not about every child who turns out to be a good musician. Children who become good musicians without a good education are simply outside the argument's scope. Their existence doesn't challenge the claim that parents seeking this specific outcome need to provide formal instruction.

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