turkey-yks 2012 Q25

turkey-yks · Other · ygs Measures of Location and Spread

In a foreign language course, the average age of students in classes $A , B$ and $C$ is 20, 26 and 29 respectively. The average age of students in classes A and B together is 23, and the average age of students in classes B and C together is 28.
According to this, what is the average age of all students in these three classes?
A) 25,5
B) 26
C) 26,5
D) 27
E) 27,5

In a foreign language course, the average age of students in classes $A , B$ and $C$ is 20, 26 and 29 respectively. The average age of students in classes A and B together is 23, and the average age of students in classes B and C together is 28.

According to this, what is the average age of all students in these three classes?\\
A) 25,5\\
B) 26\\
C) 26,5\\
D) 27\\
E) 27,5

Paper Questions

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