The average of the age of A, B, C is 25 years, while the average of – McqOptions

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1.	The average of the age of A, B, C is 25 years, while the average of the age of A, B and D is 28 years. If D is 28 years old, then what is the age of C?
A.	17 years
B.	18 years
C.	19 years
D.	20 years
Answer» D. 20 years

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