Cameron guides tour groups in a museum. He usually answers two questions per tourist. Today, he did four tours. The early morning first group was only 6 people. The following group was a busy group of 11. The third group had 8 people, but one was inquisitive and asked three times as many questions as usual. The last group of the day was a late group of 7. How many questions did Cameron answer? Let's answer step by step:
Cameron answered 2 * 6 = 12 questions for the first group. He answered 2 * 11 = 22 questions for the second group. The third group had 8 - 1 = 7 tourists that asked 2 questions each. The third group also had 1 tourist that asked 2 * 3 = 6 questions. Thus, the third group asked 7 * 2 + 6 = 14 + 6 = 20 questions. The last group asked 7 * 2 = 14 questions. For all four tours, Cameron answered 12 + 22 + 20 + 14 = 68 questions. The answer: 68.