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UPSC CDS Math Average Questions

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Question : 11

Total: 23

The average of the ages of 15 students in a class is 19 years. When 5 new students are admitted to the class, the average age of the class becomes 18.5 years. What is the average age of the 5 newly admitted students ?

17 years
17.5 years
18 years
18.5 years

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