In a class, there are three groups A, B and C. If one studen

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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?

[Prelims 2020: CSAT Official Paper]

It increases.

It decreases

It remains the same

No conclusion can be drawn due to insufficient data

EXPLANATION

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