Self-study
Support The price of a full-fare coach ticket from Toronto to Dallas on Breezeway Airlines is the same today as it was a year ago, if inflation is taken into account by calculating prices in constant dollars. ████████ █████ ██ ███████ ██ ███ █████████████████ █████ ███████ ████ █████████ █████ ███ ████████ ███████ ███ ████ ██ ███████ ███ █████████ ████████ ███████ █ ████ ███ ████ ████ ████████ ███████ ███ ████ ████ █████████ ████████ ██████████ ██ ████████ ██████ ███ ████ █████ ██ ████████ ███████ ███ █ █████████ █████████████████ █████ ██████ ████ ████ ███ █ ████ ████
Summary
People spend less, on average, on Toronto-to-Dallas tickets now than they did a year ago. This is because a year ago, a smaller fraction of these tickets were sold at a discount. And the price of full-fare tickets has remained constant.
Missing Connection
We know that the price for full-fare tickets remained constant, but what about discounted tickets? Maybe the discount was much more generous last year, when fewer people received it. (E.g., imagine that last year’s discounted tickets cost $50, but this year’s cost $1500.) If so, the overall amount of money people spent on tickets might have been lower last year.
Consequently, the author needs to assume that the price of discounted tickets has not increased to guarantee his conclusion.
Analysis by TheodoreMalter
20.
Which one of the following, ██ ████████ █████ █████ ███ ██████████ █████ ██ ██ ████████ ██████
a
A Toronto-to-Dallas full-fare █████ ██████ ██ █████████ ████████ ████████ ██████████████ ████ █ █████ █████ ██ ███████ █████ ████ ████ █ ██████ ████████ █ ████ ████
b
A Toronto-to-Dallas discount █████ ██████ ██ █████████ ████████ █████ █████ ███ ████ ██████ ██ ████████ ███████ █████ ██ ██ ███ █ ████ ████
c
All full-fare coach ███████ ██ █████████ ████████ ████ ███ ████ ██ ████████ ███████ ██ ████ ███ █ ████ ████
d
The average number ██ █████ ██████████ ███ ██████ ████ █████████ ████████ ███████ ████ ███████ ██ ██████ █████ ██ ██████ ████ ███ ███████ ██████ ███ ██████ █ ████ ████
e
The criteria that █████████ ████████ ████ ███ ██████████ ██████████ ██ ███ ████████ █████ ███████ ██ ███ █████████████████ █████ ███ █████████ █████ ████ ████ ████ █ ████ ████