The average age of a class of 60 boys which is 11.9 years is raised to 12 years by coming of a new boy the age of the new boy is:

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Question:
The average age of a class of 60 boys which is 11.9 years is raised to 12 years by coming of a new boy the age of the new boy is:

1.27 years

2.23 years

3.18 years

4.17 years

Posted Date:-2021-09-20 03:01:13

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