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This problem trains for: SAT-I, AMC-8, GMAT.

A cruise ship transports an average of 6,000 passengers during the regular season which comprises 6 months of the year. During the high season, which lasts 3 months every year, the number of passengers increases by 12%. By how much percent is the number of passengers lower in the low season with respect to the regular season, if the monthly average number of passengers transported per year is 1500?

During the high season, the number of passengers is:

Since the monthly average number of passengers is 1,500, then during the whole year, the cruise ship has transported a total of:

passengers. Therefore, the number of passengers transported during the low season is:

and this number is:

lower than the number of passengers transported during the regular season.

The answer is 12%.