Self-study
Sales manager: Last year the total number of meals sold in our company's restaurants was much higher than it was the year before. █████████ █████████ ████ ███ █████ ██████████
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Summary
The company’s restaurants sold more meals last year than the year before. However, all the restaurants that have been open for the last two years sold fewer meals last year than the year before.
Notable Valid Inferences
There must be a restaurant that was open last year but not the year before. This would explain how, in the last two years, all the other restaurants had lower meal sales while the overall number of meals sold increased.
Analysis by ZaiboonAzhar
9.
If the sales figures cited ██ ███ ██████████ ███ ███ █████ ███████ ███ ████ █████████ █████ ███ ██ ███ █████████ ████ ██ █████
a
The company opened ██ █████ ███ ███ ██████████ ██ ███ ████ ███ ██████
b
The company's meals ███ ████ ███████████ ████ ████ ████ █████
c
The quality of ███ █████████ █████ ███ ███ ████████ ████ ███ ████ ███ ██████
d
The prices of ███ █████████ █████ ████ ███████ ████ ███ ████ ███ ██████
e
The market share ████████ ██ ███ █████████ ███████████ ████ ████ █████