In a survey, 74 out of 88 tourists interviewed said they had visited at least one of these continents: Africa, Europe and South America . of these, 19 had visited only Europe and Africa, 30 Europe and south America, 26 South America and Africa. No one had visited only Africa. | 10 only Europe 7 only South America and x had visited all the three Continents. 1. Draw a Venn Diagram to illustrate the information 2. Find an[[EnA) ns b. n [CEUS) na c. n(A)