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UPSC Prelims

Mathematics

Theme:

Average / औसत

Q59 2020, Average

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?

एक कक्षा में तीन समूह A, B और C है। यदि समूह A से एक विद्यार्थी और समूह B से दो विद्यार्थियों को समूह C में स्थानांतरित किया जाता है, तो कक्षा के विद्यार्थियों के औसत भार का क्या होगा?

Explanation Please wait..

Average weight of the students of the class = Total weight of students of the class / Total number of students in the class

As no student left the class, nor any new student joined, so both the total weight and number of students remain the same.

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