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4 years, 3 months ago
The average of 3 consecutive even numbers is a next 6 even numbers are added rhen what the average of these 9 numbers
4 years, 3 months ago
Avg 4,6,8 is the middle number =6
Avg of 4,6,8,10,12,14,16,18,20 Avg is 5th no. = 12