SOLUTION: Average of 21 figures is 21 . The average become 22 when one more figure is added find that figure

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Question 1051621: Average of 21 figures is 21 . The average become 22 when one more figure is added find that figure
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
average=total/n
total=21*21=441
when one more figure is added makes 22 figures in all with an average of 22. That product is 484.
Therefore the figure that has to be added is 484-441=43.
43.