Question 4
The mean age of a group of students is 20 years. When the age of a teacher 50 years old is added to the age of the students, the mean of their ages become 22 years. find the number of students in the group.
Objective
Question details
- Exam body
- UNIPORT
- Subject
- Mathematics
- Year
- 2006/2007
- Question no.
- #4
- Type
- Objective
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