The average age of an adult class is 40 years. 12 new students with – McqOptions

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1.	The average age of an adult class is 40 years. 12 new students with an average age of 32 years join the class. Therefore decreasing the average by 4 year. what was the original strength of class ?
A.	12
B.	22
C.	33
D.	44
Answer» B. 22

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