Average age of 5 people is 42 years. Another group has 8 people who have average age of 81 years. When both groups are mixed what is average age of all people?

Average age of 5 people is 42 years. Another group has 8 people who h

1.	Average age of 5 people is 42 years. Another group has 8 people who have average age of 81 years. When both groups are mixed what is average age of all people?
A.	64 years
B.	66 years
C.	61.5 years
D.	70 years
Answer» C. 61.5 years

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Average age of 5 people is 42 years. Another group has 8 people who have average age of 81 years. When both groups are mixed what is average age of all people?

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