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UPSC CDS Math Average Questions

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Question : 19

Total: 23

The average weight of students in a class is 43 kg. Four new students are admitted to the class whose weights are 42 kg, 36-5 kg, 39 kg and 42-5 kg respectively. Now the average weight of the students of the class is 42-5 kg. The number of students in the beginning was

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