If 3 adult bears ate an average of 16 hot dogs each, and 2 bear cubs ate an average of 6 hot dogs each, then (for these 5 bears) what was the average number of hot dogs eaten per bear?
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The average of 5 numbers is their sum divided by 5. Since the sum of these 5 numbers is (16+ 16+ 16) + (6+6) = 60, their average is 60/5 = [12