In a class, there are three groups $A$ , $B$ and $C$ . If one student from group $A$ and two students from group $B$ are shifted to group $C$ , then what happens to the average weight of the students of the class?

It increases.

It decreases.

It remains the same.

No conclusion can be drawn due to insufficient data.

Kepler. Discussing PYQs. Q.no. 59

In a class, there are three groups AAA , BBB and CCC . If one student from group AAA and two students from group BBB are shifted to group CCC , then what happens to the average weight of the students of the class?