Must be TrueDiff: Medium

Logic Breakdown

Passage Summary: Most people who are good at the banjo can also play the guitar, but most guitarists can't play the banjo.

Reasoning: There is a high overlap of banjo players who play guitar, but a low percentage of guitar players who play banjo.

Analysis: This is a classic LSAT 'numbers and percentages' problem involving overlapping groups. If most banjo players (over 50%) are in the guitar group, but most guitar players (over 50%) are not in the banjo group, it mathematically implies there are more guitar players than banjo players. Think of it like this: if 6 out of 10 banjo players play guitar, but those 6 people represent less than half of all guitarists, there must be at least 13 guitarists in total.

Passage Stimulus

Passage Redacted

Unlock Full Passage

13.

If the statements above are true, which one of the following must also be true?

Correct Answer
D
Combining most banjo-skilled are guitar-skilled (x > 0.5b) with most guitar-skilled are not banjo-skilled (x < 0.5g) yields b < g, so there are more guitar-skilled people than banjo-skilled people.
Upgrade Your Prep

Ready to go beyond free explanations?

LSAT Perfection is the #1 modern LSAT prep platform, trusted by thousands of students for comprehensive test strategies, advanced drilling, and full analytics on every PrepTest.

Detailed explanations for 59 PrepTests
Advanced drillset builder
Personalized analytics
Built-in Wrong Answer Journal
Explore Perfection Plus for full LSAT prep