Answers

2015-08-25T21:00:21+08:00
The 15 consecutive numbers are 8, 9 , 10, 11, 12, 13, 14, 15, 16 , 17 ,18 ,19, 20, 21, 22, , if you add them together you'll get a sum of 225 then divided to 15 = (225/15 =15) . Therefore, the average of 15 consecutive is 225.
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