Number visiting Melbourne or Brisbane, 45, 26, 31, 12, Number visiting Brisbane only, 12, 19, 14, 26, Number visiting Melbourne only, 12, 19, 14, 26, Number visiting only one city, 35, 33, 38, 32, Number visiting neither city, 100, 56, 24, 55, Number visiting Melbourne but not Brisbane, 19, 12, 14, 31, Number visiting both Melbourne Brisbane, 31, 12, 26, 45, Number visiting only one of the two cities, 31, 12, 33, 26, Number visiting only one of the two cities, 31, 12, 33, 26, Number visiting only one of the two cities, 31, 12, 33, 26, (A∩B∩C), 1, 2, 3, 4, (A∩B), 11, 12, 13, 14, (A∩B∪C), 81, 62, 98, 67, (A∩C), 5, 6, 4, 1, (A∪B), 23, 61, 62, 12, (A´), 23, 61, 62, 12, Find the total number of elements in the Universal Set (U), 23, 61, 92, 12.

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