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In a group of 60 people, the average (arithmetic mean) age of the 40 females is 60, and the average age of the 20 males is 70.
Quantity A
Average age of all 60 people
Quantity B
65
A.The quantity in Column A is greater
B.The quantity in Column B is greater
C.The two quantities are equal.
D.The relationship cannot be determined from the information given.
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