The average age of a class was 12. It rise to 13 when the age of the c – McqOptions

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1.	The average age of a class was 12. It rise to 13 when the age of the class teacher who is 37 years old is also included. How many students are there in the class?
A.	24
B.	23
C.	22
D.	25
Answer» B. 23

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