QUESTION TEXT: The price of a full-fare coach ticket…
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.”
- The conclusion is about price. This answer choice is about service and is therefore useless.
- 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.
- This doesn’t add anything to our discussion of the prices of Toronto-to-Dallas tickets.
- We’re talking about the average price each passenger pays. It doesn’t matter how many total passengers there are.
- This could explain why more discounts are sold but it doesn’t tell us how much the discounted tickets cost.
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