The average age of a class is 12 years and total age is 300 years. If a student of age 15 years is now admitted then find the average of the new class.

Question:The average age of a class is 12 years and total age is 300 years. If a student of age 15 years is now admitted then find the average of the new class.

1.12.11 years

2.11.12 years

3.13.12 years

4.10.13 years


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