2. 职称英语
  3. In a certain room, all except 18 of the people are over 50 years of age. If 15 o

In a certain room, all except 18 of the people are over 50 years of age. If 15 o

游客2025-02-24  13
问题 In a certain room, all except 18 of the people are over 50 years of age. If 15 of the people in the room are under 50 years of age, how many people are in the room?
选项 A、27
B、30
C、33
D、36
E、It cannot be determined from the information given.
答案 E
解析 在某一房间中，除了18个人外其余人的年龄都超过50岁。若房间里小于50岁的人数为15，那么该房间里总共有多少人?
解：本题的正确答案为(E)。该题根本未涉及50岁以上的人数，故不能确定。
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