The average of a and b is 10, an average of b and c is 12 and an avera – McqOptions

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1.	The average of a and b is 10, an average of b and c is 12 and an average of c and a is 15. What is the average of a, b and c?
A.	37
B.	\(\frac{{74}}{3}\)
C.	\(\frac{{37}}{3}\)
D.	74
Answer» D. 74

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