CSATRatio, Mixture & AveragesArithmetic Geometric Progression and Averages2020

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.

Correct Answer: Option C

Explanation

To solve this, we must look at the 'Class' as a single closed system, similar to how we treat groups i

Get 10,000+ topic-wise MCQs, spaced repetition, daily CSAT challenges, and detailed performance analytics.