The average age of 40 students of a clas...

The average age of 40 students of a class Is 18 years. When 20 new students are admitted to the same class, the average age of the students of the class is Increased by 6 months. The average age of newly admitted student is:

19 years

19 years 6 months

20 years

20 years 6 months

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KIRAN PUBLICATION-AVERAGE-TYPE-VIII

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