A group of 40 tourists arrived in Rwanda and visited Akagera National park, Nyungwe forests and Virunga mountains. Results showed that 33 visited Akagera, 21 visited Nyungwe and 23 visited Virunga. 18 visited both Akagera and Nyungwe, 10 visited both Nyungwe and Virunga, and 17 visited both Akagera and Virunga. All tourists visited at least one of the places. • (a) Represent the information on a Venn diagram. • (b) Find the number of tourists that visited Akagera only.​