The image below indicates the number of residents at 5 hotels on 1 Feb and 1 July 1998. Which hotel had the greatest increase in the total number of adult residents on 1 July 1998 compared with 1 Feb of that year?
Tabulating the percentage, we get
From the table, in case of Y, the percentage is 50% and rest of the hotels have less than 50%. Hence C is the answer.
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