LSAT 29, Logical Reasoning I, Q20, LSATHacks

LR Question 20 Explanation, by LSATHacks

QUESTION TEXT: The price of a full-fare coach ticket from Toronto to…

QUESTION TYPE: Sufficient Assumption

CONCLUSION: On average people pay less in constant dollars for a coach ticket than they used to. 

REASONING: A year ago half of the tickets were discount tickets and half were full fare. Now 90% are discount tickets and only 10% were full fare. The full far ticket costs the same.

ANALYSIS: This sounds like a good argument. But we don’t know how big the discount is. If it was a lot bigger a year ago then people might be paying more even though more discounted tickets are being sold. 

E.g. If discounted tickets used to cost $1 and now they cost $1000…people are probably paying more even if more tickets are “discounted.”

___________

1. The conclusion is about price. This answer choice is about service and is therefore useless.
2. CORRECT. Now each type of ticket costs the same as it did a year ago. Since more people are buying discounted tickets people must be paying less on average. 
3. This doesn’t add anything to our discussion of the prices of Toronto-to-Dallas tickets. 
4. We’re talking about the average price each passenger pays. It doesn’t matter how many total passengers there are. 
5. This could explain why more discounts are sold but it doesn’t tell us how much the discounted tickets cost.

Hi, I'm Graeme Blake

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