SOLUTION: the average of a set of 6 numbers was 30 . when one of the six numbers was removed from the set, the average decreased by 3. what was the number that was removed?
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Question 780874: the average of a set of 6 numbers was 30 . when one of the six numbers was removed from the set, the average decreased by 3. what was the number that was removed? Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Average of 6 numbers = 30
Total of 6 numbers = 180
Average of 5 numbers = 27
Total of 5 numbers = 135
180 - 135 = 45.
45 was removed.
Hope this helps.
:-)
