The average age of three friends A, B, C is 20 years. The average age of A and B is 19 years. What is the age of C?

The average age of three friends A, B, C is 20 years. The average age

1.	The average age of three friends A, B, C is 20 years. The average age of A and B is 19 years. What is the age of C?
A.	20 years
B.	21 years
C.	22 years
D.	24 years
Answer» D. 24 years

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The average age of three friends A, B, C is 20 years. The average age of A and B is 19 years. What is the age of C?

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