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？（）
A: 27
B: 30
C: 33
D: 36
E: It cannot be determined from theinformation given．
A: 27
B: 30
C: 33
D: 36
E: It cannot be determined from theinformation given．
举一反三
- Biological age means _____. A: how many years people lived B: the relative age calculated based on some factors C: the actual years seen from the graph D: the age that people look like
- How many people are there in the room?- ___. A: None B: No one C: Lucy
- If you are organizing a meeting of 50 people, which meeting room is suitable?
- MMPI is suitable for people of ( ). A: Over 16 years B: Under 16 years C: 16-60 years D: Over 60 years
- Could you help to ______________ a room for 30 people?