A tourist agent surveyed 100 tourists to find out how many of them had visited the towns of Mombasa and Busia. Thirty-one tourists had visited Mombasa, 26 tourists had been to Busia, and 12 tourists had visited both towns. Draw a Venn diagram to find the number of tourists who had visited: (i) Mombasa or Busia. Answer (ii) Busia but not Mombasa. Answer (iii) only one of the two towns. Answer (iv) neither town. Answer