The average age of A and B is 20. If C were to replace A the average w – McqOptions

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1.	The average age of A and B is 20. If C were to replace A the average would be 19 and if B was replaced by C the average would be 21. The age of C is:
A.	18
B.	19
C.	20
D.	21
Answer» D. 21

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