The average age of 12 boys is 10 years. Out of these the average age o – McqOptions

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1.	The average age of 12 boys is 10 years. Out of these the average age of 11 boys is 9 years. Find the age of the 12th boy?
A.	25 years
B.	33 years
C.	21 years
D.	24 years
Answer» D. 24 years

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