Grades 11-12 Video Solutions 2012-2012_11-12

Video Transcription

Video Summary

A travel agency organized four optional tours of Sicily, each with an 80% participation rate. To find the smallest percentage of tourists participating in all four tours, the complementary set of those missing at least one tour was considered. Since each tour had a 20% non-participation rate, the sum of participants missing any tour equaled 80%. Thus, at most 20% of tourists participated in all four tours. This scenario can be achieved by having a setup where one out of every five tourists attends all tours, and each of the others misses just one, resulting in a minimum of 20% taking part in all tours.

Keywords

Sicily tours

participation rate

travel agency

tourists

non-participation